Home / 131,834.12-181,930.59-71,404.47

Finding the Fourth Proportional to 131,834.12, 181,930.59 and 71,404.47

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Solution

The fourth proportional to 131,834.12, 181,930.59 and 71,404.47 is: 98,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,834.12 : 181,930.59 = 71,404.47 : x
  2. Step 2: Convert to fraction form
    131,834.12/181,930.59 = 71,404.47/x
  3. Step 3: Cross multiply
    131,834.12x = 181,930.59 × 71,404.47
  4. Step 4: Simplify right side
    131,834.12x = 12,990,657,355.74
  5. Step 5: Solve for x
    x = 12,990,657,355.74/131,834.12
  6. Step 6: Final answer
    x = 98,537.90

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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.