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Finding the Fourth Proportional to 185,445.60, 255,915.08 and 100,562.64

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Solution

The fourth proportional to 185,445.60, 255,915.08 and 100,562.64 is: 138,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,445.60 : 255,915.08 = 100,562.64 : x
  2. Step 2: Convert to fraction form
    185,445.60/255,915.08 = 100,562.64/x
  3. Step 3: Cross multiply
    185,445.60x = 255,915.08 × 100,562.64
  4. Step 4: Simplify right side
    185,445.60x = 25,735,495,557.80
  5. Step 5: Solve for x
    x = 25,735,495,557.80/185,445.60
  6. Step 6: Final answer
    x = 138,776.52

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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.