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Finding the Fourth Proportional to 139,227.61, 192,134.29 and 75,565.41

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Solution

The fourth proportional to 139,227.61, 192,134.29 and 75,565.41 is: 104,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,227.61 : 192,134.29 = 75,565.41 : x
  2. Step 2: Convert to fraction form
    139,227.61/192,134.29 = 75,565.41/x
  3. Step 3: Cross multiply
    139,227.61x = 192,134.29 × 75,565.41
  4. Step 4: Simplify right side
    139,227.61x = 14,518,706,398.91
  5. Step 5: Solve for x
    x = 14,518,706,398.91/139,227.61
  6. Step 6: Final answer
    x = 104,280.37

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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.