Home / 109,264.64-150,755.04-61,515.20

Finding the Fourth Proportional to 109,264.64, 150,755.04 and 61,515.20

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Solution

The fourth proportional to 109,264.64, 150,755.04 and 61,515.20 is: 84,873.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,264.64 : 150,755.04 = 61,515.20 : x
  2. Step 2: Convert to fraction form
    109,264.64/150,755.04 = 61,515.20/x
  3. Step 3: Cross multiply
    109,264.64x = 150,755.04 × 61,515.20
  4. Step 4: Simplify right side
    109,264.64x = 9,273,726,436.61
  5. Step 5: Solve for x
    x = 9,273,726,436.61/109,264.64
  6. Step 6: Final answer
    x = 84,873.99

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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.