Home / 121,515.02-167,687.24-67,798.88

Finding the Fourth Proportional to 121,515.02, 167,687.24 and 67,798.88

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Solution

The fourth proportional to 121,515.02, 167,687.24 and 67,798.88 is: 93,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515.02 : 167,687.24 = 67,798.88 : x
  2. Step 2: Convert to fraction form
    121,515.02/167,687.24 = 67,798.88/x
  3. Step 3: Cross multiply
    121,515.02x = 167,687.24 × 67,798.88
  4. Step 4: Simplify right side
    121,515.02x = 11,369,007,062.29
  5. Step 5: Solve for x
    x = 11,369,007,062.29/121,515.02
  6. Step 6: Final answer
    x = 93,560.51

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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.