Home / 158,713.32-219,024.26-90,731.80

Finding the Fourth Proportional to 158,713.32, 219,024.26 and 90,731.80

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Solution

The fourth proportional to 158,713.32, 219,024.26 and 90,731.80 is: 125,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,713.32 : 219,024.26 = 90,731.80 : x
  2. Step 2: Convert to fraction form
    158,713.32/219,024.26 = 90,731.80/x
  3. Step 3: Cross multiply
    158,713.32x = 219,024.26 × 90,731.80
  4. Step 4: Simplify right side
    158,713.32x = 19,872,465,353.47
  5. Step 5: Solve for x
    x = 19,872,465,353.47/158,713.32
  6. Step 6: Final answer
    x = 125,209.81

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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.