Home / 115,948.44-173,981.02-86,425.56

Finding the Fourth Proportional to 115,948.44, 173,981.02 and 86,425.56

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Solution

The fourth proportional to 115,948.44, 173,981.02 and 86,425.56 is: 129,681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,948.44 : 173,981.02 = 86,425.56 : x
  2. Step 2: Convert to fraction form
    115,948.44/173,981.02 = 86,425.56/x
  3. Step 3: Cross multiply
    115,948.44x = 173,981.02 × 86,425.56
  4. Step 4: Simplify right side
    115,948.44x = 15,036,407,082.87
  5. Step 5: Solve for x
    x = 15,036,407,082.87/115,948.44
  6. Step 6: Final answer
    x = 129,681.84

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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.