Home / 98,685.92-136,183.20-56,258.12

Finding the Fourth Proportional to 98,685.92, 136,183.20 and 56,258.12

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Solution

The fourth proportional to 98,685.92, 136,183.20 and 56,258.12 is: 77,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,685.92 : 136,183.20 = 56,258.12 : x
  2. Step 2: Convert to fraction form
    98,685.92/136,183.20 = 56,258.12/x
  3. Step 3: Cross multiply
    98,685.92x = 136,183.20 × 56,258.12
  4. Step 4: Simplify right side
    98,685.92x = 7,661,410,807.58
  5. Step 5: Solve for x
    x = 7,661,410,807.58/98,685.92
  6. Step 6: Final answer
    x = 77,634.28

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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.