Home / 130,812.60-196,218.90-129,430.20

Finding the Fourth Proportional to 130,812.60, 196,218.90 and 129,430.20

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Solution

The fourth proportional to 130,812.60, 196,218.90 and 129,430.20 is: 194,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,812.60 : 196,218.90 = 129,430.20 : x
  2. Step 2: Convert to fraction form
    130,812.60/196,218.90 = 129,430.20/x
  3. Step 3: Cross multiply
    130,812.60x = 196,218.90 × 129,430.20
  4. Step 4: Simplify right side
    130,812.60x = 25,396,651,470.78
  5. Step 5: Solve for x
    x = 25,396,651,470.78/130,812.60
  6. Step 6: Final answer
    x = 194,145.30

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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.