Home / 158,277.85-218,422.00-85,680.38

Finding the Fourth Proportional to 158,277.85, 218,422.00 and 85,680.38

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Solution

The fourth proportional to 158,277.85, 218,422.00 and 85,680.38 is: 118,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,277.85 : 218,422.00 = 85,680.38 : x
  2. Step 2: Convert to fraction form
    158,277.85/218,422.00 = 85,680.38/x
  3. Step 3: Cross multiply
    158,277.85x = 218,422.00 × 85,680.38
  4. Step 4: Simplify right side
    158,277.85x = 18,714,480,613.52
  5. Step 5: Solve for x
    x = 18,714,480,613.52/158,277.85
  6. Step 6: Final answer
    x = 118,238.15

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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.