Home / 130,379.76-195,662.88-55,552.32

Finding the Fourth Proportional to 130,379.76, 195,662.88 and 55,552.32

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Solution

The fourth proportional to 130,379.76, 195,662.88 and 55,552.32 is: 83,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,379.76 : 195,662.88 = 55,552.32 : x
  2. Step 2: Convert to fraction form
    130,379.76/195,662.88 = 55,552.32/x
  3. Step 3: Cross multiply
    130,379.76x = 195,662.88 × 55,552.32
  4. Step 4: Simplify right side
    130,379.76x = 10,869,526,921.88
  5. Step 5: Solve for x
    x = 10,869,526,921.88/130,379.76
  6. Step 6: Final answer
    x = 83,368.21

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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.