Home / 131,523.29-181,513.20-80,535.77

Finding the Fourth Proportional to 131,523.29, 181,513.20 and 80,535.77

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Solution

The fourth proportional to 131,523.29, 181,513.20 and 80,535.77 is: 111,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,523.29 : 181,513.20 = 80,535.77 : x
  2. Step 2: Convert to fraction form
    131,523.29/181,513.20 = 80,535.77/x
  3. Step 3: Cross multiply
    131,523.29x = 181,513.20 × 80,535.77
  4. Step 4: Simplify right side
    131,523.29x = 14,618,305,327.16
  5. Step 5: Solve for x
    x = 14,618,305,327.16/131,523.29
  6. Step 6: Final answer
    x = 111,146.13

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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.