Home / 123,971.60-185,827.80-67,725.20

Finding the Fourth Proportional to 123,971.60, 185,827.80 and 67,725.20

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Solution

The fourth proportional to 123,971.60, 185,827.80 and 67,725.20 is: 101,517.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,971.60 : 185,827.80 = 67,725.20 : x
  2. Step 2: Convert to fraction form
    123,971.60/185,827.80 = 67,725.20/x
  3. Step 3: Cross multiply
    123,971.60x = 185,827.80 × 67,725.20
  4. Step 4: Simplify right side
    123,971.60x = 12,585,224,920.56
  5. Step 5: Solve for x
    x = 12,585,224,920.56/123,971.60
  6. Step 6: Final answer
    x = 101,517.00

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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.