Home / 124,116.62-171,356.96-76,434.56

Finding the Fourth Proportional to 124,116.62, 171,356.96 and 76,434.56

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Solution

The fourth proportional to 124,116.62, 171,356.96 and 76,434.56 is: 105,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,116.62 : 171,356.96 = 76,434.56 : x
  2. Step 2: Convert to fraction form
    124,116.62/171,356.96 = 76,434.56/x
  3. Step 3: Cross multiply
    124,116.62x = 171,356.96 × 76,434.56
  4. Step 4: Simplify right side
    124,116.62x = 13,097,592,601.58
  5. Step 5: Solve for x
    x = 13,097,592,601.58/124,116.62
  6. Step 6: Final answer
    x = 105,526.51

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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.