Home / 147,517.80-221,276.70-100,278.60

Finding the Fourth Proportional to 147,517.80, 221,276.70 and 100,278.60

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Solution

The fourth proportional to 147,517.80, 221,276.70 and 100,278.60 is: 150,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,517.80 : 221,276.70 = 100,278.60 : x
  2. Step 2: Convert to fraction form
    147,517.80/221,276.70 = 100,278.60/x
  3. Step 3: Cross multiply
    147,517.80x = 221,276.70 × 100,278.60
  4. Step 4: Simplify right side
    147,517.80x = 22,189,317,688.62
  5. Step 5: Solve for x
    x = 22,189,317,688.62/147,517.80
  6. Step 6: Final answer
    x = 150,417.90

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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.