Home / 98,736.87-136,256.47-53,414.75

Finding the Fourth Proportional to 98,736.87, 136,256.47 and 53,414.75

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Solution

The fourth proportional to 98,736.87, 136,256.47 and 53,414.75 is: 73,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,736.87 : 136,256.47 = 53,414.75 : x
  2. Step 2: Convert to fraction form
    98,736.87/136,256.47 = 53,414.75/x
  3. Step 3: Cross multiply
    98,736.87x = 136,256.47 × 53,414.75
  4. Step 4: Simplify right side
    98,736.87x = 7,278,105,280.93
  5. Step 5: Solve for x
    x = 7,278,105,280.93/98,736.87
  6. Step 6: Final answer
    x = 73,712.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.