Home / 260,119.20-390,251.70-127,003.80

Finding the Fourth Proportional to 260,119.20, 390,251.70 and 127,003.80

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Solution

The fourth proportional to 260,119.20, 390,251.70 and 127,003.80 is: 190,541.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,119.20 : 390,251.70 = 127,003.80 : x
  2. Step 2: Convert to fraction form
    260,119.20/390,251.70 = 127,003.80/x
  3. Step 3: Cross multiply
    260,119.20x = 390,251.70 × 127,003.80
  4. Step 4: Simplify right side
    260,119.20x = 49,563,448,856.46
  5. Step 5: Solve for x
    x = 49,563,448,856.46/260,119.20
  6. Step 6: Final answer
    x = 190,541.29

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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.