Home / 112,517.64-155,289.78-67,797

Finding the Fourth Proportional to 112,517.64, 155,289.78 and 67,797

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Solution

The fourth proportional to 112,517.64, 155,289.78 and 67,797 is: 93,569.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.64 : 155,289.78 = 67,797 : x
  2. Step 2: Convert to fraction form
    112,517.64/155,289.78 = 67,797/x
  3. Step 3: Cross multiply
    112,517.64x = 155,289.78 × 67,797
  4. Step 4: Simplify right side
    112,517.64x = 10,528,181,214.66
  5. Step 5: Solve for x
    x = 10,528,181,214.66/112,517.64
  6. Step 6: Final answer
    x = 93,569.16

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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.