Home / 158,731.38-219,015.09-91,624.50

Finding the Fourth Proportional to 158,731.38, 219,015.09 and 91,624.50

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Solution

The fourth proportional to 158,731.38, 219,015.09 and 91,624.50 is: 126,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,731.38 : 219,015.09 = 91,624.50 : x
  2. Step 2: Convert to fraction form
    158,731.38/219,015.09 = 91,624.50/x
  3. Step 3: Cross multiply
    158,731.38x = 219,015.09 × 91,624.50
  4. Step 4: Simplify right side
    158,731.38x = 20,067,148,113.71
  5. Step 5: Solve for x
    x = 20,067,148,113.71/158,731.38
  6. Step 6: Final answer
    x = 126,422.06

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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.