Home / 156,279.85-215,667.23-84,659.82

Finding the Fourth Proportional to 156,279.85, 215,667.23 and 84,659.82

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Solution

The fourth proportional to 156,279.85, 215,667.23 and 84,659.82 is: 116,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,279.85 : 215,667.23 = 84,659.82 : x
  2. Step 2: Convert to fraction form
    156,279.85/215,667.23 = 84,659.82/x
  3. Step 3: Cross multiply
    156,279.85x = 215,667.23 × 84,659.82
  4. Step 4: Simplify right side
    156,279.85x = 18,258,347,639.65
  5. Step 5: Solve for x
    x = 18,258,347,639.65/156,279.85
  6. Step 6: Final answer
    x = 116,831.11

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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.