Home / 98,708.67-136,217.99-55,697.28

Finding the Fourth Proportional to 98,708.67, 136,217.99 and 55,697.28

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Solution

The fourth proportional to 98,708.67, 136,217.99 and 55,697.28 is: 76,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,708.67 : 136,217.99 = 55,697.28 : x
  2. Step 2: Convert to fraction form
    98,708.67/136,217.99 = 55,697.28/x
  3. Step 3: Cross multiply
    98,708.67x = 136,217.99 × 55,697.28
  4. Step 4: Simplify right side
    98,708.67x = 7,586,970,570.49
  5. Step 5: Solve for x
    x = 7,586,970,570.49/98,708.67
  6. Step 6: Final answer
    x = 76,862.25

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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.