Home / 131,087.52-180,895.68-77,374.08

Finding the Fourth Proportional to 131,087.52, 180,895.68 and 77,374.08

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Solution

The fourth proportional to 131,087.52, 180,895.68 and 77,374.08 is: 106,773.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,087.52 : 180,895.68 = 77,374.08 : x
  2. Step 2: Convert to fraction form
    131,087.52/180,895.68 = 77,374.08/x
  3. Step 3: Cross multiply
    131,087.52x = 180,895.68 × 77,374.08
  4. Step 4: Simplify right side
    131,087.52x = 13,996,636,815.97
  5. Step 5: Solve for x
    x = 13,996,636,815.97/131,087.52
  6. Step 6: Final answer
    x = 106,773.22

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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.