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Finding the Fourth Proportional to 156,614, 216,127.56 and 89,547.44

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Solution

The fourth proportional to 156,614, 216,127.56 and 89,547.44 is: 123,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,614 : 216,127.56 = 89,547.44 : x
  2. Step 2: Convert to fraction form
    156,614/216,127.56 = 89,547.44/x
  3. Step 3: Cross multiply
    156,614x = 216,127.56 × 89,547.44
  4. Step 4: Simplify right side
    156,614x = 19,353,669,711.45
  5. Step 5: Solve for x
    x = 19,353,669,711.45/156,614
  6. Step 6: Final answer
    x = 123,575.60

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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.