Home / 140,112.25-193,354.95-89,811.25

Finding the Fourth Proportional to 140,112.25, 193,354.95 and 89,811.25

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Solution

The fourth proportional to 140,112.25, 193,354.95 and 89,811.25 is: 123,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,112.25 : 193,354.95 = 89,811.25 : x
  2. Step 2: Convert to fraction form
    140,112.25/193,354.95 = 89,811.25/x
  3. Step 3: Cross multiply
    140,112.25x = 193,354.95 × 89,811.25
  4. Step 4: Simplify right side
    140,112.25x = 17,365,449,753.19
  5. Step 5: Solve for x
    x = 17,365,449,753.19/140,112.25
  6. Step 6: Final answer
    x = 123,939.55

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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.