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Finding the Fourth Proportional to 103,177.38, 154,809.80 and 56,375.58

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Solution

The fourth proportional to 103,177.38, 154,809.80 and 56,375.58 is: 84,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,177.38 : 154,809.80 = 56,375.58 : x
  2. Step 2: Convert to fraction form
    103,177.38/154,809.80 = 56,375.58/x
  3. Step 3: Cross multiply
    103,177.38x = 154,809.80 × 56,375.58
  4. Step 4: Simplify right side
    103,177.38x = 8,727,492,264.68
  5. Step 5: Solve for x
    x = 8,727,492,264.68/103,177.38
  6. Step 6: Final answer
    x = 84,587.26

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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.