Home / 102,738.38-141,784.36-62,445.60

Finding the Fourth Proportional to 102,738.38, 141,784.36 and 62,445.60

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Solution

The fourth proportional to 102,738.38, 141,784.36 and 62,445.60 is: 86,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,738.38 : 141,784.36 = 62,445.60 : x
  2. Step 2: Convert to fraction form
    102,738.38/141,784.36 = 62,445.60/x
  3. Step 3: Cross multiply
    102,738.38x = 141,784.36 × 62,445.60
  4. Step 4: Simplify right side
    102,738.38x = 8,853,809,274.70
  5. Step 5: Solve for x
    x = 8,853,809,274.70/102,738.38
  6. Step 6: Final answer
    x = 86,178.21

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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.