Home / 91,065.74-136,359.27-73,201.58

Finding the Fourth Proportional to 91,065.74, 136,359.27 and 73,201.58

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Solution

The fourth proportional to 91,065.74, 136,359.27 and 73,201.58 is: 109,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,065.74 : 136,359.27 = 73,201.58 : x
  2. Step 2: Convert to fraction form
    91,065.74/136,359.27 = 73,201.58/x
  3. Step 3: Cross multiply
    91,065.74x = 136,359.27 × 73,201.58
  4. Step 4: Simplify right side
    91,065.74x = 9,981,714,011.65
  5. Step 5: Solve for x
    x = 9,981,714,011.65/91,065.74
  6. Step 6: Final answer
    x = 109,609.98

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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.