Home / 113,988.76-170,148.46-100,521.92

Finding the Fourth Proportional to 113,988.76, 170,148.46 and 100,521.92

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Solution

The fourth proportional to 113,988.76, 170,148.46 and 100,521.92 is: 150,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,988.76 : 170,148.46 = 100,521.92 : x
  2. Step 2: Convert to fraction form
    113,988.76/170,148.46 = 100,521.92/x
  3. Step 3: Cross multiply
    113,988.76x = 170,148.46 × 100,521.92
  4. Step 4: Simplify right side
    113,988.76x = 17,103,649,884.24
  5. Step 5: Solve for x
    x = 17,103,649,884.24/113,988.76
  6. Step 6: Final answer
    x = 150,046.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.