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Finding the Fourth Proportional to 119,888.96, 165,434.96 and 66,170.52

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Solution

The fourth proportional to 119,888.96, 165,434.96 and 66,170.52 is: 91,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,888.96 : 165,434.96 = 66,170.52 : x
  2. Step 2: Convert to fraction form
    119,888.96/165,434.96 = 66,170.52/x
  3. Step 3: Cross multiply
    119,888.96x = 165,434.96 × 66,170.52
  4. Step 4: Simplify right side
    119,888.96x = 10,946,917,329.38
  5. Step 5: Solve for x
    x = 10,946,917,329.38/119,888.96
  6. Step 6: Final answer
    x = 91,308.80

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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.