Home / 130,812.10-196,218.15-129,429.70

Finding the Fourth Proportional to 130,812.10, 196,218.15 and 129,429.70

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Solution

The fourth proportional to 130,812.10, 196,218.15 and 129,429.70 is: 194,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,812.10 : 196,218.15 = 129,429.70 : x
  2. Step 2: Convert to fraction form
    130,812.10/196,218.15 = 129,429.70/x
  3. Step 3: Cross multiply
    130,812.10x = 196,218.15 × 129,429.70
  4. Step 4: Simplify right side
    130,812.10x = 25,396,456,289.06
  5. Step 5: Solve for x
    x = 25,396,456,289.06/130,812.10
  6. Step 6: Final answer
    x = 194,144.55

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1.5x scale

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.