Home / 119,681.28-165,159.54-65,966.40

Finding the Fourth Proportional to 119,681.28, 165,159.54 and 65,966.40

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Solution

The fourth proportional to 119,681.28, 165,159.54 and 65,966.40 is: 91,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,681.28 : 165,159.54 = 65,966.40 : x
  2. Step 2: Convert to fraction form
    119,681.28/165,159.54 = 65,966.40/x
  3. Step 3: Cross multiply
    119,681.28x = 165,159.54 × 65,966.40
  4. Step 4: Simplify right side
    119,681.28x = 10,894,980,279.46
  5. Step 5: Solve for x
    x = 10,894,980,279.46/119,681.28
  6. Step 6: Final answer
    x = 91,033.29

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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.