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Finding the Fourth Proportional to 124,642.88, 171,948.96 and 84,344

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Solution

The fourth proportional to 124,642.88, 171,948.96 and 84,344 is: 116,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,642.88 : 171,948.96 = 84,344 : x
  2. Step 2: Convert to fraction form
    124,642.88/171,948.96 = 84,344/x
  3. Step 3: Cross multiply
    124,642.88x = 171,948.96 × 84,344
  4. Step 4: Simplify right side
    124,642.88x = 14,502,863,082.24
  5. Step 5: Solve for x
    x = 14,502,863,082.24/124,642.88
  6. Step 6: Final answer
    x = 116,355.33

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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.