Home / 121,275.60-167,363.28-67,561.50

Finding the Fourth Proportional to 121,275.60, 167,363.28 and 67,561.50

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Solution

The fourth proportional to 121,275.60, 167,363.28 and 67,561.50 is: 93,236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,275.60 : 167,363.28 = 67,561.50 : x
  2. Step 2: Convert to fraction form
    121,275.60/167,363.28 = 67,561.50/x
  3. Step 3: Cross multiply
    121,275.60x = 167,363.28 × 67,561.50
  4. Step 4: Simplify right side
    121,275.60x = 11,307,314,241.72
  5. Step 5: Solve for x
    x = 11,307,314,241.72/121,275.60
  6. Step 6: Final answer
    x = 93,236.51

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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.