Home / 130,356.76-195,358.28-55,382.90

Finding the Fourth Proportional to 130,356.76, 195,358.28 and 55,382.90

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Solution

The fourth proportional to 130,356.76, 195,358.28 and 55,382.90 is: 82,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,356.76 : 195,358.28 = 55,382.90 : x
  2. Step 2: Convert to fraction form
    130,356.76/195,358.28 = 55,382.90/x
  3. Step 3: Cross multiply
    130,356.76x = 195,358.28 × 55,382.90
  4. Step 4: Simplify right side
    130,356.76x = 10,819,508,085.41
  5. Step 5: Solve for x
    x = 10,819,508,085.41/130,356.76
  6. Step 6: Final answer
    x = 82,999.21

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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.