Home / 121,422.68-167,557.21-66,984.40

Finding the Fourth Proportional to 121,422.68, 167,557.21 and 66,984.40

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Solution

The fourth proportional to 121,422.68, 167,557.21 and 66,984.40 is: 92,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,422.68 : 167,557.21 = 66,984.40 : x
  2. Step 2: Convert to fraction form
    121,422.68/167,557.21 = 66,984.40/x
  3. Step 3: Cross multiply
    121,422.68x = 167,557.21 × 66,984.40
  4. Step 4: Simplify right side
    121,422.68x = 11,223,719,177.52
  5. Step 5: Solve for x
    x = 11,223,719,177.52/121,422.68
  6. Step 6: Final answer
    x = 92,435.11

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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.