Home / 119,972.52-165,554.82-72,241.32

Finding the Fourth Proportional to 119,972.52, 165,554.82 and 72,241.32

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Solution

The fourth proportional to 119,972.52, 165,554.82 and 72,241.32 is: 99,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,972.52 : 165,554.82 = 72,241.32 : x
  2. Step 2: Convert to fraction form
    119,972.52/165,554.82 = 72,241.32/x
  3. Step 3: Cross multiply
    119,972.52x = 165,554.82 × 72,241.32
  4. Step 4: Simplify right side
    119,972.52x = 11,959,898,729.16
  5. Step 5: Solve for x
    x = 11,959,898,729.16/119,972.52
  6. Step 6: Final answer
    x = 99,688.65

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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.