Home / 156,251.03-215,626.05-84,631.23

Finding the Fourth Proportional to 156,251.03, 215,626.05 and 84,631.23

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Solution

The fourth proportional to 156,251.03, 215,626.05 and 84,631.23 is: 116,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,251.03 : 215,626.05 = 84,631.23 : x
  2. Step 2: Convert to fraction form
    156,251.03/215,626.05 = 84,631.23/x
  3. Step 3: Cross multiply
    156,251.03x = 215,626.05 × 84,631.23
  4. Step 4: Simplify right side
    156,251.03x = 18,248,697,831.54
  5. Step 5: Solve for x
    x = 18,248,697,831.54/156,251.03
  6. Step 6: Final answer
    x = 116,790.90

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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.