Home / 179,505.68-269,308.40-78,312.56

Finding the Fourth Proportional to 179,505.68, 269,308.40 and 78,312.56

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Solution

The fourth proportional to 179,505.68, 269,308.40 and 78,312.56 is: 117,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,505.68 : 269,308.40 = 78,312.56 : x
  2. Step 2: Convert to fraction form
    179,505.68/269,308.40 = 78,312.56/x
  3. Step 3: Cross multiply
    179,505.68x = 269,308.40 × 78,312.56
  4. Step 4: Simplify right side
    179,505.68x = 21,090,230,233.50
  5. Step 5: Solve for x
    x = 21,090,230,233.50/179,505.68
  6. Step 6: Final answer
    x = 117,490.60

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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.