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Finding the Fourth Proportional to 147,007.60, 220,477.80 and 72,052.72

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Solution

The fourth proportional to 147,007.60, 220,477.80 and 72,052.72 is: 108,062.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,007.60 : 220,477.80 = 72,052.72 : x
  2. Step 2: Convert to fraction form
    147,007.60/220,477.80 = 72,052.72/x
  3. Step 3: Cross multiply
    147,007.60x = 220,477.80 × 72,052.72
  4. Step 4: Simplify right side
    147,007.60x = 15,886,025,189.62
  5. Step 5: Solve for x
    x = 15,886,025,189.62/147,007.60
  6. Step 6: Final answer
    x = 108,062.61

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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.