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Finding the Fourth Proportional to 123,833.28, 170,891.96 and 70,116.88

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Solution

The fourth proportional to 123,833.28, 170,891.96 and 70,116.88 is: 96,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,833.28 : 170,891.96 = 70,116.88 : x
  2. Step 2: Convert to fraction form
    123,833.28/170,891.96 = 70,116.88/x
  3. Step 3: Cross multiply
    123,833.28x = 170,891.96 × 70,116.88
  4. Step 4: Simplify right side
    123,833.28x = 11,982,411,052.28
  5. Step 5: Solve for x
    x = 11,982,411,052.28/123,833.28
  6. Step 6: Final answer
    x = 96,762.45

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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.