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Finding the Fourth Proportional to 173,659.68, 239,569.92 and 102,038.40

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Solution

The fourth proportional to 173,659.68, 239,569.92 and 102,038.40 is: 140,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,659.68 : 239,569.92 = 102,038.40 : x
  2. Step 2: Convert to fraction form
    173,659.68/239,569.92 = 102,038.40/x
  3. Step 3: Cross multiply
    173,659.68x = 239,569.92 × 102,038.40
  4. Step 4: Simplify right side
    173,659.68x = 24,445,331,324.93
  5. Step 5: Solve for x
    x = 24,445,331,324.93/173,659.68
  6. Step 6: Final answer
    x = 140,765.73

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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.