Home / 98,921.97-136,509.48-58,085.46

Finding the Fourth Proportional to 98,921.97, 136,509.48 and 58,085.46

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Solution

The fourth proportional to 98,921.97, 136,509.48 and 58,085.46 is: 80,156.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.97 : 136,509.48 = 58,085.46 : x
  2. Step 2: Convert to fraction form
    98,921.97/136,509.48 = 58,085.46/x
  3. Step 3: Cross multiply
    98,921.97x = 136,509.48 × 58,085.46
  4. Step 4: Simplify right side
    98,921.97x = 7,929,215,940.16
  5. Step 5: Solve for x
    x = 7,929,215,940.16/98,921.97
  6. Step 6: Final answer
    x = 80,156.27

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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.