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Finding the Fourth Proportional to 103,275.60, 154,913.40 and 63,877.20

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Solution

The fourth proportional to 103,275.60, 154,913.40 and 63,877.20 is: 95,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,275.60 : 154,913.40 = 63,877.20 : x
  2. Step 2: Convert to fraction form
    103,275.60/154,913.40 = 63,877.20/x
  3. Step 3: Cross multiply
    103,275.60x = 154,913.40 × 63,877.20
  4. Step 4: Simplify right side
    103,275.60x = 9,895,434,234.48
  5. Step 5: Solve for x
    x = 9,895,434,234.48/103,275.60
  6. Step 6: Final answer
    x = 95,815.80

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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.