Home / 124,268.12-171,490.20-67,679.72

Finding the Fourth Proportional to 124,268.12, 171,490.20 and 67,679.72

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Solution

The fourth proportional to 124,268.12, 171,490.20 and 67,679.72 is: 93,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,268.12 : 171,490.20 = 67,679.72 : x
  2. Step 2: Convert to fraction form
    124,268.12/171,490.20 = 67,679.72/x
  3. Step 3: Cross multiply
    124,268.12x = 171,490.20 × 67,679.72
  4. Step 4: Simplify right side
    124,268.12x = 11,606,408,718.74
  5. Step 5: Solve for x
    x = 11,606,408,718.74/124,268.12
  6. Step 6: Final answer
    x = 93,398.12

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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.