Home / 98,686.42-136,183.89-56,258.62

Finding the Fourth Proportional to 98,686.42, 136,183.89 and 56,258.62

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Solution

The fourth proportional to 98,686.42, 136,183.89 and 56,258.62 is: 77,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686.42 : 136,183.89 = 56,258.62 : x
  2. Step 2: Convert to fraction form
    98,686.42/136,183.89 = 56,258.62/x
  3. Step 3: Cross multiply
    98,686.42x = 136,183.89 × 56,258.62
  4. Step 4: Simplify right side
    98,686.42x = 7,661,517,717.63
  5. Step 5: Solve for x
    x = 7,661,517,717.63/98,686.42
  6. Step 6: Final answer
    x = 77,634.97

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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.