Home / 119,815.66-165,374.42-72,059.82

Finding the Fourth Proportional to 119,815.66, 165,374.42 and 72,059.82

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Solution

The fourth proportional to 119,815.66, 165,374.42 and 72,059.82 is: 99,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,815.66 : 165,374.42 = 72,059.82 : x
  2. Step 2: Convert to fraction form
    119,815.66/165,374.42 = 72,059.82/x
  3. Step 3: Cross multiply
    119,815.66x = 165,374.42 × 72,059.82
  4. Step 4: Simplify right side
    119,815.66x = 11,916,850,937.80
  5. Step 5: Solve for x
    x = 11,916,850,937.80/119,815.66
  6. Step 6: Final answer
    x = 99,459.88

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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.