Home / 131,251,834.96-181,129,432.88-72,515,850.96

Finding the Fourth Proportional to 131,251,834.96, 181,129,432.88 and 72,515,850.96

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Solution

The fourth proportional to 131,251,834.96, 181,129,432.88 and 72,515,850.96 is: 100,072,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,251,834.96 : 181,129,432.88 = 72,515,850.96 : x
  2. Step 2: Convert to fraction form
    131,251,834.96/181,129,432.88 = 72,515,850.96/x
  3. Step 3: Cross multiply
    131,251,834.96x = 181,129,432.88 × 72,515,850.96
  4. Step 4: Simplify right side
    131,251,834.96x = 13,134,754,959,195,402
  5. Step 5: Solve for x
    x = 13,134,754,959,195,402/131,251,834.96
  6. Step 6: Final answer
    x = 100,072,924.41

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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.