Home / 119,631.59-165,103.23-89,364.36

Finding the Fourth Proportional to 119,631.59, 165,103.23 and 89,364.36

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Solution

The fourth proportional to 119,631.59, 165,103.23 and 89,364.36 is: 123,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,631.59 : 165,103.23 = 89,364.36 : x
  2. Step 2: Convert to fraction form
    119,631.59/165,103.23 = 89,364.36/x
  3. Step 3: Cross multiply
    119,631.59x = 165,103.23 × 89,364.36
  4. Step 4: Simplify right side
    119,631.59x = 14,754,344,612.12
  5. Step 5: Solve for x
    x = 14,754,344,612.12/119,631.59
  6. Step 6: Final answer
    x = 123,331.51

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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.