Home / 103,620.47-155,227.31-53,733.18

Finding the Fourth Proportional to 103,620.47, 155,227.31 and 53,733.18

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Solution

The fourth proportional to 103,620.47, 155,227.31 and 53,733.18 is: 80,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.47 : 155,227.31 = 53,733.18 : x
  2. Step 2: Convert to fraction form
    103,620.47/155,227.31 = 53,733.18/x
  3. Step 3: Cross multiply
    103,620.47x = 155,227.31 × 53,733.18
  4. Step 4: Simplify right side
    103,620.47x = 8,340,856,989.15
  5. Step 5: Solve for x
    x = 8,340,856,989.15/103,620.47
  6. Step 6: Final answer
    x = 80,494.30

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1.5x scale

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.