Home / 152,972.31-229,379.69-68,660.20

Finding the Fourth Proportional to 152,972.31, 229,379.69 and 68,660.20

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Solution

The fourth proportional to 152,972.31, 229,379.69 and 68,660.20 is: 102,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,972.31 : 229,379.69 = 68,660.20 : x
  2. Step 2: Convert to fraction form
    152,972.31/229,379.69 = 68,660.20/x
  3. Step 3: Cross multiply
    152,972.31x = 229,379.69 × 68,660.20
  4. Step 4: Simplify right side
    152,972.31x = 15,749,254,474.59
  5. Step 5: Solve for x
    x = 15,749,254,474.59/152,972.31
  6. Step 6: Final answer
    x = 102,954.94

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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.