Home / 121,120.10-167,153.59-67,404.95

Finding the Fourth Proportional to 121,120.10, 167,153.59 and 67,404.95

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Solution

The fourth proportional to 121,120.10, 167,153.59 and 67,404.95 is: 93,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,120.10 : 167,153.59 = 67,404.95 : x
  2. Step 2: Convert to fraction form
    121,120.10/167,153.59 = 67,404.95/x
  3. Step 3: Cross multiply
    121,120.10x = 167,153.59 × 67,404.95
  4. Step 4: Simplify right side
    121,120.10x = 11,266,979,376.27
  5. Step 5: Solve for x
    x = 11,266,979,376.27/121,120.10
  6. Step 6: Final answer
    x = 93,023.20

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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.