Home / 109,120.43-150,584.71-61,373.76

Finding the Fourth Proportional to 109,120.43, 150,584.71 and 61,373.76

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Solution

The fourth proportional to 109,120.43, 150,584.71 and 61,373.76 is: 84,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,120.43 : 150,584.71 = 61,373.76 : x
  2. Step 2: Convert to fraction form
    109,120.43/150,584.71 = 61,373.76/x
  3. Step 3: Cross multiply
    109,120.43x = 150,584.71 × 61,373.76
  4. Step 4: Simplify right side
    109,120.43x = 9,241,949,851.21
  5. Step 5: Solve for x
    x = 9,241,949,851.21/109,120.43
  6. Step 6: Final answer
    x = 84,694.95

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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.