Home / 130,188.30-179,660.55-75,772.72

Finding the Fourth Proportional to 130,188.30, 179,660.55 and 75,772.72

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Solution

The fourth proportional to 130,188.30, 179,660.55 and 75,772.72 is: 104,566.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,188.30 : 179,660.55 = 75,772.72 : x
  2. Step 2: Convert to fraction form
    130,188.30/179,660.55 = 75,772.72/x
  3. Step 3: Cross multiply
    130,188.30x = 179,660.55 × 75,772.72
  4. Step 4: Simplify right side
    130,188.30x = 13,613,368,550.20
  5. Step 5: Solve for x
    x = 13,613,368,550.20/130,188.30
  6. Step 6: Final answer
    x = 104,566.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.