Home / 156,641.13-216,158.96-85,019.63

Finding the Fourth Proportional to 156,641.13, 216,158.96 and 85,019.63

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Solution

The fourth proportional to 156,641.13, 216,158.96 and 85,019.63 is: 117,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641.13 : 216,158.96 = 85,019.63 : x
  2. Step 2: Convert to fraction form
    156,641.13/216,158.96 = 85,019.63/x
  3. Step 3: Cross multiply
    156,641.13x = 216,158.96 × 85,019.63
  4. Step 4: Simplify right side
    156,641.13x = 18,377,753,932.14
  5. Step 5: Solve for x
    x = 18,377,753,932.14/156,641.13
  6. Step 6: Final answer
    x = 117,323.94

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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.