Home / 131,525.13-181,461.87-80,484.60

Finding the Fourth Proportional to 131,525.13, 181,461.87 and 80,484.60

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Solution

The fourth proportional to 131,525.13, 181,461.87 and 80,484.60 is: 111,042.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,525.13 : 181,461.87 = 80,484.60 : x
  2. Step 2: Convert to fraction form
    131,525.13/181,461.87 = 80,484.60/x
  3. Step 3: Cross multiply
    131,525.13x = 181,461.87 × 80,484.60
  4. Step 4: Simplify right side
    131,525.13x = 14,604,886,022.20
  5. Step 5: Solve for x
    x = 14,604,886,022.20/131,525.13
  6. Step 6: Final answer
    x = 111,042.55

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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.