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Finding the Fourth Proportional to 187,892.92, 259,292.10 and 103,011.40

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Solution

The fourth proportional to 187,892.92, 259,292.10 and 103,011.40 is: 142,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,892.92 : 259,292.10 = 103,011.40 : x
  2. Step 2: Convert to fraction form
    187,892.92/259,292.10 = 103,011.40/x
  3. Step 3: Cross multiply
    187,892.92x = 259,292.10 × 103,011.40
  4. Step 4: Simplify right side
    187,892.92x = 26,710,042,229.94
  5. Step 5: Solve for x
    x = 26,710,042,229.94/187,892.92
  6. Step 6: Final answer
    x = 142,155.66

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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.