Home / 131,800.38-181,887.03-72,184.38

Finding the Fourth Proportional to 131,800.38, 181,887.03 and 72,184.38

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Solution

The fourth proportional to 131,800.38, 181,887.03 and 72,184.38 is: 99,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,800.38 : 181,887.03 = 72,184.38 : x
  2. Step 2: Convert to fraction form
    131,800.38/181,887.03 = 72,184.38/x
  3. Step 3: Cross multiply
    131,800.38x = 181,887.03 × 72,184.38
  4. Step 4: Simplify right side
    131,800.38x = 13,129,402,490.59
  5. Step 5: Solve for x
    x = 13,129,402,490.59/131,800.38
  6. Step 6: Final answer
    x = 99,615.82

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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.