Home / 121,892.97-168,248.40-70,928.73

Finding the Fourth Proportional to 121,892.97, 168,248.40 and 70,928.73

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Solution

The fourth proportional to 121,892.97, 168,248.40 and 70,928.73 is: 97,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,892.97 : 168,248.40 = 70,928.73 : x
  2. Step 2: Convert to fraction form
    121,892.97/168,248.40 = 70,928.73/x
  3. Step 3: Cross multiply
    121,892.97x = 168,248.40 × 70,928.73
  4. Step 4: Simplify right side
    121,892.97x = 11,933,645,336.53
  5. Step 5: Solve for x
    x = 11,933,645,336.53/121,892.97
  6. Step 6: Final answer
    x = 97,902.65

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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.