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Finding the Fourth Proportional to 137,267.80, 205,901.70 and 48,520.60

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Solution

The fourth proportional to 137,267.80, 205,901.70 and 48,520.60 is: 72,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,267.80 : 205,901.70 = 48,520.60 : x
  2. Step 2: Convert to fraction form
    137,267.80/205,901.70 = 48,520.60/x
  3. Step 3: Cross multiply
    137,267.80x = 205,901.70 × 48,520.60
  4. Step 4: Simplify right side
    137,267.80x = 9,990,474,025.02
  5. Step 5: Solve for x
    x = 9,990,474,025.02/137,267.80
  6. Step 6: Final answer
    x = 72,780.90

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1.5x scale

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.