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Finding the Fourth Proportional to 147,773.08, 203,931.88 and 87,395.47

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Solution

The fourth proportional to 147,773.08, 203,931.88 and 87,395.47 is: 120,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,773.08 : 203,931.88 = 87,395.47 : x
  2. Step 2: Convert to fraction form
    147,773.08/203,931.88 = 87,395.47/x
  3. Step 3: Cross multiply
    147,773.08x = 203,931.88 × 87,395.47
  4. Step 4: Simplify right side
    147,773.08x = 17,822,722,500.58
  5. Step 5: Solve for x
    x = 17,822,722,500.58/147,773.08
  6. Step 6: Final answer
    x = 120,608.72

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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.