Home / 98,983.67-136,561.66-65,010.56

Finding the Fourth Proportional to 98,983.67, 136,561.66 and 65,010.56

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Solution

The fourth proportional to 98,983.67, 136,561.66 and 65,010.56 is: 89,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,983.67 : 136,561.66 = 65,010.56 : x
  2. Step 2: Convert to fraction form
    98,983.67/136,561.66 = 65,010.56/x
  3. Step 3: Cross multiply
    98,983.67x = 136,561.66 × 65,010.56
  4. Step 4: Simplify right side
    98,983.67x = 8,877,949,145.79
  5. Step 5: Solve for x
    x = 8,877,949,145.79/98,983.67
  6. Step 6: Final answer
    x = 89,691.05

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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.