Home / 130,769.30-180,456.18-74,191.34

Finding the Fourth Proportional to 130,769.30, 180,456.18 and 74,191.34

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Solution

The fourth proportional to 130,769.30, 180,456.18 and 74,191.34 is: 102,380.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,769.30 : 180,456.18 = 74,191.34 : x
  2. Step 2: Convert to fraction form
    130,769.30/180,456.18 = 74,191.34/x
  3. Step 3: Cross multiply
    130,769.30x = 180,456.18 × 74,191.34
  4. Step 4: Simplify right side
    130,769.30x = 13,388,285,805.48
  5. Step 5: Solve for x
    x = 13,388,285,805.48/130,769.30
  6. Step 6: Final answer
    x = 102,380.95

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1.5x scale

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.