Home / 121,064,840.80-181,597,261.20-72,597,421.60

Finding the Fourth Proportional to 121,064,840.80, 181,597,261.20 and 72,597,421.60

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Solution

The fourth proportional to 121,064,840.80, 181,597,261.20 and 72,597,421.60 is: 108,896,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,064,840.80 : 181,597,261.20 = 72,597,421.60 : x
  2. Step 2: Convert to fraction form
    121,064,840.80/181,597,261.20 = 72,597,421.60/x
  3. Step 3: Cross multiply
    121,064,840.80x = 181,597,261.20 × 72,597,421.60
  4. Step 4: Simplify right side
    121,064,840.80x = 13,183,492,932,741,720
  5. Step 5: Solve for x
    x = 13,183,492,932,741,720/121,064,840.80
  6. Step 6: Final answer
    x = 108,896,132.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.