Home / 156,009.76-215,225.08-91,446.27

Finding the Fourth Proportional to 156,009.76, 215,225.08 and 91,446.27

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Solution

The fourth proportional to 156,009.76, 215,225.08 and 91,446.27 is: 126,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009.76 : 215,225.08 = 91,446.27 : x
  2. Step 2: Convert to fraction form
    156,009.76/215,225.08 = 91,446.27/x
  3. Step 3: Cross multiply
    156,009.76x = 215,225.08 × 91,446.27
  4. Step 4: Simplify right side
    156,009.76x = 19,681,530,255.13
  5. Step 5: Solve for x
    x = 19,681,530,255.13/156,009.76
  6. Step 6: Final answer
    x = 126,155.76

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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.