Home / 130,389.20-196,001.40-121,144.40

Finding the Fourth Proportional to 130,389.20, 196,001.40 and 121,144.40

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Solution

The fourth proportional to 130,389.20, 196,001.40 and 121,144.40 is: 182,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,389.20 : 196,001.40 = 121,144.40 : x
  2. Step 2: Convert to fraction form
    130,389.20/196,001.40 = 121,144.40/x
  3. Step 3: Cross multiply
    130,389.20x = 196,001.40 × 121,144.40
  4. Step 4: Simplify right side
    130,389.20x = 23,744,472,002.16
  5. Step 5: Solve for x
    x = 23,744,472,002.16/130,389.20
  6. Step 6: Final answer
    x = 182,104.59

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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.