Home / 156,090.08-215,404.32-84,470.12

Finding the Fourth Proportional to 156,090.08, 215,404.32 and 84,470.12

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Solution

The fourth proportional to 156,090.08, 215,404.32 and 84,470.12 is: 116,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,090.08 : 215,404.32 = 84,470.12 : x
  2. Step 2: Convert to fraction form
    156,090.08/215,404.32 = 84,470.12/x
  3. Step 3: Cross multiply
    156,090.08x = 215,404.32 × 84,470.12
  4. Step 4: Simplify right side
    156,090.08x = 18,195,228,758.92
  5. Step 5: Solve for x
    x = 18,195,228,758.92/156,090.08
  6. Step 6: Final answer
    x = 116,568.77

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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.