Home / 128,418.17-192,579.35-44,154.47

Finding the Fourth Proportional to 128,418.17, 192,579.35 and 44,154.47

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Solution

The fourth proportional to 128,418.17, 192,579.35 and 44,154.47 is: 66,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,418.17 : 192,579.35 = 44,154.47 : x
  2. Step 2: Convert to fraction form
    128,418.17/192,579.35 = 44,154.47/x
  3. Step 3: Cross multiply
    128,418.17x = 192,579.35 × 44,154.47
  4. Step 4: Simplify right side
    128,418.17x = 8,503,237,948.53
  5. Step 5: Solve for x
    x = 8,503,237,948.53/128,418.17
  6. Step 6: Final answer
    x = 66,215.23

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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.