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Finding the Fourth Proportional to 162,127.40, 243,045.30 and 102,932.60

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Solution

The fourth proportional to 162,127.40, 243,045.30 and 102,932.60 is: 154,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,127.40 : 243,045.30 = 102,932.60 : x
  2. Step 2: Convert to fraction form
    162,127.40/243,045.30 = 102,932.60/x
  3. Step 3: Cross multiply
    162,127.40x = 243,045.30 × 102,932.60
  4. Step 4: Simplify right side
    162,127.40x = 25,017,284,646.78
  5. Step 5: Solve for x
    x = 25,017,284,646.78/162,127.40
  6. Step 6: Final answer
    x = 154,306.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.