Home / 155,843.28-233,823.18-80,916.66

Finding the Fourth Proportional to 155,843.28, 233,823.18 and 80,916.66

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Solution

The fourth proportional to 155,843.28, 233,823.18 and 80,916.66 is: 121,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,843.28 : 233,823.18 = 80,916.66 : x
  2. Step 2: Convert to fraction form
    155,843.28/233,823.18 = 80,916.66/x
  3. Step 3: Cross multiply
    155,843.28x = 233,823.18 × 80,916.66
  4. Step 4: Simplify right side
    155,843.28x = 18,920,190,756.18
  5. Step 5: Solve for x
    x = 18,920,190,756.18/155,843.28
  6. Step 6: Final answer
    x = 121,405.24

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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.