Home / 98,727.37-136,200.48-57,870.78

Finding the Fourth Proportional to 98,727.37, 136,200.48 and 57,870.78

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Solution

The fourth proportional to 98,727.37, 136,200.48 and 57,870.78 is: 79,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,727.37 : 136,200.48 = 57,870.78 : x
  2. Step 2: Convert to fraction form
    98,727.37/136,200.48 = 57,870.78/x
  3. Step 3: Cross multiply
    98,727.37x = 136,200.48 × 57,870.78
  4. Step 4: Simplify right side
    98,727.37x = 7,882,028,013.97
  5. Step 5: Solve for x
    x = 7,882,028,013.97/98,727.37
  6. Step 6: Final answer
    x = 79,836.30

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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.