Home / 130,425.92-195,463.68-71,172.80

Finding the Fourth Proportional to 130,425.92, 195,463.68 and 71,172.80

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Solution

The fourth proportional to 130,425.92, 195,463.68 and 71,172.80 is: 106,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,425.92 : 195,463.68 = 71,172.80 : x
  2. Step 2: Convert to fraction form
    130,425.92/195,463.68 = 71,172.80/x
  3. Step 3: Cross multiply
    130,425.92x = 195,463.68 × 71,172.80
  4. Step 4: Simplify right side
    130,425.92x = 13,911,697,403.90
  5. Step 5: Solve for x
    x = 13,911,697,403.90/130,425.92
  6. Step 6: Final answer
    x = 106,663.59

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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.