Home / 115,376.26-159,233.74-66,967.78

Finding the Fourth Proportional to 115,376.26, 159,233.74 and 66,967.78

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Solution

The fourth proportional to 115,376.26, 159,233.74 and 66,967.78 is: 92,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,376.26 : 159,233.74 = 66,967.78 : x
  2. Step 2: Convert to fraction form
    115,376.26/159,233.74 = 66,967.78/x
  3. Step 3: Cross multiply
    115,376.26x = 159,233.74 × 66,967.78
  4. Step 4: Simplify right side
    115,376.26x = 10,663,530,068.90
  5. Step 5: Solve for x
    x = 10,663,530,068.90/115,376.26
  6. Step 6: Final answer
    x = 92,423.95

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1.5x scale

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.