Home / 130,388.65-179,915.78-75,949.79

Finding the Fourth Proportional to 130,388.65, 179,915.78 and 75,949.79

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Solution

The fourth proportional to 130,388.65, 179,915.78 and 75,949.79 is: 104,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,388.65 : 179,915.78 = 75,949.79 : x
  2. Step 2: Convert to fraction form
    130,388.65/179,915.78 = 75,949.79/x
  3. Step 3: Cross multiply
    130,388.65x = 179,915.78 × 75,949.79
  4. Step 4: Simplify right side
    130,388.65x = 13,664,564,998.98
  5. Step 5: Solve for x
    x = 13,664,564,998.98/130,388.65
  6. Step 6: Final answer
    x = 104,798.73

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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.