Home / 156,238.20-215,621.97-88,267.65

Finding the Fourth Proportional to 156,238.20, 215,621.97 and 88,267.65

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Solution

The fourth proportional to 156,238.20, 215,621.97 and 88,267.65 is: 121,816.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,238.20 : 215,621.97 = 88,267.65 : x
  2. Step 2: Convert to fraction form
    156,238.20/215,621.97 = 88,267.65/x
  3. Step 3: Cross multiply
    156,238.20x = 215,621.97 × 88,267.65
  4. Step 4: Simplify right side
    156,238.20x = 19,032,444,580.27
  5. Step 5: Solve for x
    x = 19,032,444,580.27/156,238.20
  6. Step 6: Final answer
    x = 121,816.84

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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.