Home / 121,546.60-182,427.90-71,564.20

Finding the Fourth Proportional to 121,546.60, 182,427.90 and 71,564.20

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Solution

The fourth proportional to 121,546.60, 182,427.90 and 71,564.20 is: 107,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,546.60 : 182,427.90 = 71,564.20 : x
  2. Step 2: Convert to fraction form
    121,546.60/182,427.90 = 71,564.20/x
  3. Step 3: Cross multiply
    121,546.60x = 182,427.90 × 71,564.20
  4. Step 4: Simplify right side
    121,546.60x = 13,055,306,721.18
  5. Step 5: Solve for x
    x = 13,055,306,721.18/121,546.60
  6. Step 6: Final answer
    x = 107,409.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.