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Finding the Fourth Proportional to 147,314.80, 220,826.40 and 72,373.60

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Solution

The fourth proportional to 147,314.80, 220,826.40 and 72,373.60 is: 108,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,314.80 : 220,826.40 = 72,373.60 : x
  2. Step 2: Convert to fraction form
    147,314.80/220,826.40 = 72,373.60/x
  3. Step 3: Cross multiply
    147,314.80x = 220,826.40 × 72,373.60
  4. Step 4: Simplify right side
    147,314.80x = 15,982,001,543.04
  5. Step 5: Solve for x
    x = 15,982,001,543.04/147,314.80
  6. Step 6: Final answer
    x = 108,488.77

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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.