Home / 215,159.45-322,443.92-136,132.21

Finding the Fourth Proportional to 215,159.45, 322,443.92 and 136,132.21

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Solution

The fourth proportional to 215,159.45, 322,443.92 and 136,132.21 is: 204,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,159.45 : 322,443.92 = 136,132.21 : x
  2. Step 2: Convert to fraction form
    215,159.45/322,443.92 = 136,132.21/x
  3. Step 3: Cross multiply
    215,159.45x = 322,443.92 × 136,132.21
  4. Step 4: Simplify right side
    215,159.45x = 43,895,002,964.88
  5. Step 5: Solve for x
    x = 43,895,002,964.88/215,159.45
  6. Step 6: Final answer
    x = 204,011.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.