Home / 99,273.68-136,993.92-56,836.16

Finding the Fourth Proportional to 99,273.68, 136,993.92 and 56,836.16

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Solution

The fourth proportional to 99,273.68, 136,993.92 and 56,836.16 is: 78,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,273.68 : 136,993.92 = 56,836.16 : x
  2. Step 2: Convert to fraction form
    99,273.68/136,993.92 = 56,836.16/x
  3. Step 3: Cross multiply
    99,273.68x = 136,993.92 × 56,836.16
  4. Step 4: Simplify right side
    99,273.68x = 7,786,208,356.15
  5. Step 5: Solve for x
    x = 7,786,208,356.15/99,273.68
  6. Step 6: Final answer
    x = 78,431.75

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1.5x scale

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.