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Finding the Fourth Proportional to 158,001.01, 217,988.03 and 89,969.76

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Solution

The fourth proportional to 158,001.01, 217,988.03 and 89,969.76 is: 124,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,001.01 : 217,988.03 = 89,969.76 : x
  2. Step 2: Convert to fraction form
    158,001.01/217,988.03 = 89,969.76/x
  3. Step 3: Cross multiply
    158,001.01x = 217,988.03 × 89,969.76
  4. Step 4: Simplify right side
    158,001.01x = 19,612,331,263.69
  5. Step 5: Solve for x
    x = 19,612,331,263.69/158,001.01
  6. Step 6: Final answer
    x = 124,127.88

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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.