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Finding the Fourth Proportional to 187,898.96, 259,308.60 and 112,432.88

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Solution

The fourth proportional to 187,898.96, 259,308.60 and 112,432.88 is: 155,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,898.96 : 259,308.60 = 112,432.88 : x
  2. Step 2: Convert to fraction form
    187,898.96/259,308.60 = 112,432.88/x
  3. Step 3: Cross multiply
    187,898.96x = 259,308.60 × 112,432.88
  4. Step 4: Simplify right side
    187,898.96x = 29,154,812,706.77
  5. Step 5: Solve for x
    x = 29,154,812,706.77/187,898.96
  6. Step 6: Final answer
    x = 155,162.18

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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.