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Finding the Fourth Proportional to 147,041.70, 220,708.35 and 72,246.30

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Solution

The fourth proportional to 147,041.70, 220,708.35 and 72,246.30 is: 108,441.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,041.70 : 220,708.35 = 72,246.30 : x
  2. Step 2: Convert to fraction form
    147,041.70/220,708.35 = 72,246.30/x
  3. Step 3: Cross multiply
    147,041.70x = 220,708.35 × 72,246.30
  4. Step 4: Simplify right side
    147,041.70x = 15,945,361,666.61
  5. Step 5: Solve for x
    x = 15,945,361,666.61/147,041.70
  6. Step 6: Final answer
    x = 108,441.09

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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.