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Finding the Fourth Proportional to 178,726.80, 246,644.68 and 98,156

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Solution

The fourth proportional to 178,726.80, 246,644.68 and 98,156 is: 135,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,726.80 : 246,644.68 = 98,156 : x
  2. Step 2: Convert to fraction form
    178,726.80/246,644.68 = 98,156/x
  3. Step 3: Cross multiply
    178,726.80x = 246,644.68 × 98,156
  4. Step 4: Simplify right side
    178,726.80x = 24,209,655,210.08
  5. Step 5: Solve for x
    x = 24,209,655,210.08/178,726.80
  6. Step 6: Final answer
    x = 135,456.21

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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.