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Finding the Fourth Proportional to 119,665.85, 165,132.14 and 65,950.70

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Solution

The fourth proportional to 119,665.85, 165,132.14 and 65,950.70 is: 91,008.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,665.85 : 165,132.14 = 65,950.70 : x
  2. Step 2: Convert to fraction form
    119,665.85/165,132.14 = 65,950.70/x
  3. Step 3: Cross multiply
    119,665.85x = 165,132.14 × 65,950.70
  4. Step 4: Simplify right side
    119,665.85x = 10,890,579,070.08
  5. Step 5: Solve for x
    x = 10,890,579,070.08/119,665.85
  6. Step 6: Final answer
    x = 91,008.25

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1.5x scale

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.