Home / 122,575.02-169,041.18-79,509.66

Finding the Fourth Proportional to 122,575.02, 169,041.18 and 79,509.66

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Solution

The fourth proportional to 122,575.02, 169,041.18 and 79,509.66 is: 109,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,575.02 : 169,041.18 = 79,509.66 : x
  2. Step 2: Convert to fraction form
    122,575.02/169,041.18 = 79,509.66/x
  3. Step 3: Cross multiply
    122,575.02x = 169,041.18 × 79,509.66
  4. Step 4: Simplify right side
    122,575.02x = 13,440,406,747.80
  5. Step 5: Solve for x
    x = 13,440,406,747.80/122,575.02
  6. Step 6: Final answer
    x = 109,650.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.