Home / 136,443.20-204,664.80-42,948.95

Finding the Fourth Proportional to 136,443.20, 204,664.80 and 42,948.95

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Solution

The fourth proportional to 136,443.20, 204,664.80 and 42,948.95 is: 64,423.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,443.20 : 204,664.80 = 42,948.95 : x
  2. Step 2: Convert to fraction form
    136,443.20/204,664.80 = 42,948.95/x
  3. Step 3: Cross multiply
    136,443.20x = 204,664.80 × 42,948.95
  4. Step 4: Simplify right side
    136,443.20x = 8,790,138,261.96
  5. Step 5: Solve for x
    x = 8,790,138,261.96/136,443.20
  6. Step 6: Final answer
    x = 64,423.43

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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.