Home / 121,158.18-167,178.60-67,441.95

Finding the Fourth Proportional to 121,158.18, 167,178.60 and 67,441.95

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Solution

The fourth proportional to 121,158.18, 167,178.60 and 67,441.95 is: 93,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,158.18 : 167,178.60 = 67,441.95 : x
  2. Step 2: Convert to fraction form
    121,158.18/167,178.60 = 67,441.95/x
  3. Step 3: Cross multiply
    121,158.18x = 167,178.60 × 67,441.95
  4. Step 4: Simplify right side
    121,158.18x = 11,274,850,782.27
  5. Step 5: Solve for x
    x = 11,274,850,782.27/121,158.18
  6. Step 6: Final answer
    x = 93,058.93

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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.