Home / 191,947.20-287,330.30-125,243.70

Finding the Fourth Proportional to 191,947.20, 287,330.30 and 125,243.70

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Solution

The fourth proportional to 191,947.20, 287,330.30 and 125,243.70 is: 187,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,947.20 : 287,330.30 = 125,243.70 : x
  2. Step 2: Convert to fraction form
    191,947.20/287,330.30 = 125,243.70/x
  3. Step 3: Cross multiply
    191,947.20x = 287,330.30 × 125,243.70
  4. Step 4: Simplify right side
    191,947.20x = 35,986,309,894.11
  5. Step 5: Solve for x
    x = 35,986,309,894.11/191,947.20
  6. Step 6: Final answer
    x = 187,480.25

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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.