Home / 115,213.14-159,030-67,449.06

Finding the Fourth Proportional to 115,213.14, 159,030 and 67,449.06

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Solution

The fourth proportional to 115,213.14, 159,030 and 67,449.06 is: 93,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,213.14 : 159,030 = 67,449.06 : x
  2. Step 2: Convert to fraction form
    115,213.14/159,030 = 67,449.06/x
  3. Step 3: Cross multiply
    115,213.14x = 159,030 × 67,449.06
  4. Step 4: Simplify right side
    115,213.14x = 10,726,424,011.80
  5. Step 5: Solve for x
    x = 10,726,424,011.80/115,213.14
  6. Step 6: Final answer
    x = 93,100.70

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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.