Home / 261,376.61-392,115.94-83,869.97

Finding the Fourth Proportional to 261,376.61, 392,115.94 and 83,869.97

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Solution

The fourth proportional to 261,376.61, 392,115.94 and 83,869.97 is: 125,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,376.61 : 392,115.94 = 83,869.97 : x
  2. Step 2: Convert to fraction form
    261,376.61/392,115.94 = 83,869.97/x
  3. Step 3: Cross multiply
    261,376.61x = 392,115.94 × 83,869.97
  4. Step 4: Simplify right side
    261,376.61x = 32,886,749,954.07
  5. Step 5: Solve for x
    x = 32,886,749,954.07/261,376.61
  6. Step 6: Final answer
    x = 125,821.32

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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.