Home / 156,565.38-216,060.78-84,945.60

Finding the Fourth Proportional to 156,565.38, 216,060.78 and 84,945.60

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Solution

The fourth proportional to 156,565.38, 216,060.78 and 84,945.60 is: 117,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565.38 : 216,060.78 = 84,945.60 : x
  2. Step 2: Convert to fraction form
    156,565.38/216,060.78 = 84,945.60/x
  3. Step 3: Cross multiply
    156,565.38x = 216,060.78 × 84,945.60
  4. Step 4: Simplify right side
    156,565.38x = 18,353,412,593.57
  5. Step 5: Solve for x
    x = 18,353,412,593.57/156,565.38
  6. Step 6: Final answer
    x = 117,225.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.