Home / 121,263.54-167,337.02-66,813.90

Finding the Fourth Proportional to 121,263.54, 167,337.02 and 66,813.90

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Solution

The fourth proportional to 121,263.54, 167,337.02 and 66,813.90 is: 92,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,263.54 : 167,337.02 = 66,813.90 : x
  2. Step 2: Convert to fraction form
    121,263.54/167,337.02 = 66,813.90/x
  3. Step 3: Cross multiply
    121,263.54x = 167,337.02 × 66,813.90
  4. Step 4: Simplify right side
    121,263.54x = 11,180,438,920.58
  5. Step 5: Solve for x
    x = 11,180,438,920.58/121,263.54
  6. Step 6: Final answer
    x = 92,199.51

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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.