Home / 98,712.24-136,231.56-58,405.68

Finding the Fourth Proportional to 98,712.24, 136,231.56 and 58,405.68

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Solution

The fourth proportional to 98,712.24, 136,231.56 and 58,405.68 is: 80,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,712.24 : 136,231.56 = 58,405.68 : x
  2. Step 2: Convert to fraction form
    98,712.24/136,231.56 = 58,405.68/x
  3. Step 3: Cross multiply
    98,712.24x = 136,231.56 × 58,405.68
  4. Step 4: Simplify right side
    98,712.24x = 7,956,696,899.26
  5. Step 5: Solve for x
    x = 7,956,696,899.26/98,712.24
  6. Step 6: Final answer
    x = 80,604.97

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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.