Home / 98,610.15-136,147.65-58,336.81

Finding the Fourth Proportional to 98,610.15, 136,147.65 and 58,336.81

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Solution

The fourth proportional to 98,610.15, 136,147.65 and 58,336.81 is: 80,543.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,610.15 : 136,147.65 = 58,336.81 : x
  2. Step 2: Convert to fraction form
    98,610.15/136,147.65 = 58,336.81/x
  3. Step 3: Cross multiply
    98,610.15x = 136,147.65 × 58,336.81
  4. Step 4: Simplify right side
    98,610.15x = 7,942,419,590.00
  5. Step 5: Solve for x
    x = 7,942,419,590.00/98,610.15
  6. Step 6: Final answer
    x = 80,543.63

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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.