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Finding the Fourth Proportional to 121,373.03, 167,494.81 and 67,656.90

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Solution

The fourth proportional to 121,373.03, 167,494.81 and 67,656.90 is: 93,366.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,373.03 : 167,494.81 = 67,656.90 : x
  2. Step 2: Convert to fraction form
    121,373.03/167,494.81 = 67,656.90/x
  3. Step 3: Cross multiply
    121,373.03x = 167,494.81 × 67,656.90
  4. Step 4: Simplify right side
    121,373.03x = 11,332,178,973.56
  5. Step 5: Solve for x
    x = 11,332,178,973.56/121,373.03
  6. Step 6: Final answer
    x = 93,366.53

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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.