Home / 106,012.20-158,125.21-98,663.88

Finding the Fourth Proportional to 106,012.20, 158,125.21 and 98,663.88

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Solution

The fourth proportional to 106,012.20, 158,125.21 and 98,663.88 is: 147,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,012.20 : 158,125.21 = 98,663.88 : x
  2. Step 2: Convert to fraction form
    106,012.20/158,125.21 = 98,663.88/x
  3. Step 3: Cross multiply
    106,012.20x = 158,125.21 × 98,663.88
  4. Step 4: Simplify right side
    106,012.20x = 15,601,246,744.41
  5. Step 5: Solve for x
    x = 15,601,246,744.41/106,012.20
  6. Step 6: Final answer
    x = 147,164.64

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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.