Home / 130,909.28-196,358.42-42,160.80

Finding the Fourth Proportional to 130,909.28, 196,358.42 and 42,160.80

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Solution

The fourth proportional to 130,909.28, 196,358.42 and 42,160.80 is: 63,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,909.28 : 196,358.42 = 42,160.80 : x
  2. Step 2: Convert to fraction form
    130,909.28/196,358.42 = 42,160.80/x
  3. Step 3: Cross multiply
    130,909.28x = 196,358.42 × 42,160.80
  4. Step 4: Simplify right side
    130,909.28x = 8,278,628,073.94
  5. Step 5: Solve for x
    x = 8,278,628,073.94/130,909.28
  6. Step 6: Final answer
    x = 63,239.43

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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.