Home / 121,148.39-167,190.28-67,436.84

Finding the Fourth Proportional to 121,148.39, 167,190.28 and 67,436.84

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Solution

The fourth proportional to 121,148.39, 167,190.28 and 67,436.84 is: 93,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.39 : 167,190.28 = 67,436.84 : x
  2. Step 2: Convert to fraction form
    121,148.39/167,190.28 = 67,436.84/x
  3. Step 3: Cross multiply
    121,148.39x = 167,190.28 × 67,436.84
  4. Step 4: Simplify right side
    121,148.39x = 11,274,784,411.30
  5. Step 5: Solve for x
    x = 11,274,784,411.30/121,148.39
  6. Step 6: Final answer
    x = 93,065.90

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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.