Home / 137,700.90-206,288.10-93,108.78

Finding the Fourth Proportional to 137,700.90, 206,288.10 and 93,108.78

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Solution

The fourth proportional to 137,700.90, 206,288.10 and 93,108.78 is: 139,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,700.90 : 206,288.10 = 93,108.78 : x
  2. Step 2: Convert to fraction form
    137,700.90/206,288.10 = 93,108.78/x
  3. Step 3: Cross multiply
    137,700.90x = 206,288.10 × 93,108.78
  4. Step 4: Simplify right side
    137,700.90x = 19,207,233,319.52
  5. Step 5: Solve for x
    x = 19,207,233,319.52/137,700.90
  6. Step 6: Final answer
    x = 139,485.17

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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.