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Finding the Fourth Proportional to 153,930.30, 230,895.45 and 54,203.10

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Solution

The fourth proportional to 153,930.30, 230,895.45 and 54,203.10 is: 81,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,930.30 : 230,895.45 = 54,203.10 : x
  2. Step 2: Convert to fraction form
    153,930.30/230,895.45 = 54,203.10/x
  3. Step 3: Cross multiply
    153,930.30x = 230,895.45 × 54,203.10
  4. Step 4: Simplify right side
    153,930.30x = 12,515,249,165.90
  5. Step 5: Solve for x
    x = 12,515,249,165.90/153,930.30
  6. Step 6: Final answer
    x = 81,304.65

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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.