Home / 130,238.70-195,066.45-100,560.30

Finding the Fourth Proportional to 130,238.70, 195,066.45 and 100,560.30

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Solution

The fourth proportional to 130,238.70, 195,066.45 and 100,560.30 is: 150,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,238.70 : 195,066.45 = 100,560.30 : x
  2. Step 2: Convert to fraction form
    130,238.70/195,066.45 = 100,560.30/x
  3. Step 3: Cross multiply
    130,238.70x = 195,066.45 × 100,560.30
  4. Step 4: Simplify right side
    130,238.70x = 19,615,940,731.94
  5. Step 5: Solve for x
    x = 19,615,940,731.94/130,238.70
  6. Step 6: Final answer
    x = 150,615.30

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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.