Home / 98,707.02-136,205.19-58,422.48

Finding the Fourth Proportional to 98,707.02, 136,205.19 and 58,422.48

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Solution

The fourth proportional to 98,707.02, 136,205.19 and 58,422.48 is: 80,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,707.02 : 136,205.19 = 58,422.48 : x
  2. Step 2: Convert to fraction form
    98,707.02/136,205.19 = 58,422.48/x
  3. Step 3: Cross multiply
    98,707.02x = 136,205.19 × 58,422.48
  4. Step 4: Simplify right side
    98,707.02x = 7,957,444,988.67
  5. Step 5: Solve for x
    x = 7,957,444,988.67/98,707.02
  6. Step 6: Final answer
    x = 80,616.81

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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.