Home / 158,694.08-219,009.80-90,713.76

Finding the Fourth Proportional to 158,694.08, 219,009.80 and 90,713.76

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Solution

The fourth proportional to 158,694.08, 219,009.80 and 90,713.76 is: 125,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,694.08 : 219,009.80 = 90,713.76 : x
  2. Step 2: Convert to fraction form
    158,694.08/219,009.80 = 90,713.76/x
  3. Step 3: Cross multiply
    158,694.08x = 219,009.80 × 90,713.76
  4. Step 4: Simplify right side
    158,694.08x = 19,867,202,434.85
  5. Step 5: Solve for x
    x = 19,867,202,434.85/158,694.08
  6. Step 6: Final answer
    x = 125,191.83

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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.