Home / 158,617.75-218,889.51-89,706.29

Finding the Fourth Proportional to 158,617.75, 218,889.51 and 89,706.29

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Solution

The fourth proportional to 158,617.75, 218,889.51 and 89,706.29 is: 123,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,617.75 : 218,889.51 = 89,706.29 : x
  2. Step 2: Convert to fraction form
    158,617.75/218,889.51 = 89,706.29/x
  3. Step 3: Cross multiply
    158,617.75x = 218,889.51 × 89,706.29
  4. Step 4: Simplify right side
    158,617.75x = 19,635,765,862.02
  5. Step 5: Solve for x
    x = 19,635,765,862.02/158,617.75
  6. Step 6: Final answer
    x = 123,792.99

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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.