Home / 160,684.65-240,929.78-71,921.61

Finding the Fourth Proportional to 160,684.65, 240,929.78 and 71,921.61

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Solution

The fourth proportional to 160,684.65, 240,929.78 and 71,921.61 is: 107,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,684.65 : 240,929.78 = 71,921.61 : x
  2. Step 2: Convert to fraction form
    160,684.65/240,929.78 = 71,921.61/x
  3. Step 3: Cross multiply
    160,684.65x = 240,929.78 × 71,921.61
  4. Step 4: Simplify right side
    160,684.65x = 17,328,057,314.94
  5. Step 5: Solve for x
    x = 17,328,057,314.94/160,684.65
  6. Step 6: Final answer
    x = 107,838.91

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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.