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Finding the Fourth Proportional to 119,863.96, 165,412.10 and 66,148.98

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Solution

The fourth proportional to 119,863.96, 165,412.10 and 66,148.98 is: 91,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,863.96 : 165,412.10 = 66,148.98 : x
  2. Step 2: Convert to fraction form
    119,863.96/165,412.10 = 66,148.98/x
  3. Step 3: Cross multiply
    119,863.96x = 165,412.10 × 66,148.98
  4. Step 4: Simplify right side
    119,863.96x = 10,941,841,694.66
  5. Step 5: Solve for x
    x = 10,941,841,694.66/119,863.96
  6. Step 6: Final answer
    x = 91,285.50

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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.