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Finding the Fourth Proportional to 138,344.68, 207,516.30 and 88,300.36

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Solution

The fourth proportional to 138,344.68, 207,516.30 and 88,300.36 is: 132,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,344.68 : 207,516.30 = 88,300.36 : x
  2. Step 2: Convert to fraction form
    138,344.68/207,516.30 = 88,300.36/x
  3. Step 3: Cross multiply
    138,344.68x = 207,516.30 × 88,300.36
  4. Step 4: Simplify right side
    138,344.68x = 18,323,763,995.87
  5. Step 5: Solve for x
    x = 18,323,763,995.87/138,344.68
  6. Step 6: Final answer
    x = 132,450.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.