Home / 108,707.97-149,988.45-62,756.36

Finding the Fourth Proportional to 108,707.97, 149,988.45 and 62,756.36

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Solution

The fourth proportional to 108,707.97, 149,988.45 and 62,756.36 is: 86,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,707.97 : 149,988.45 = 62,756.36 : x
  2. Step 2: Convert to fraction form
    108,707.97/149,988.45 = 62,756.36/x
  3. Step 3: Cross multiply
    108,707.97x = 149,988.45 × 62,756.36
  4. Step 4: Simplify right side
    108,707.97x = 9,412,728,100.32
  5. Step 5: Solve for x
    x = 9,412,728,100.32/108,707.97
  6. Step 6: Final answer
    x = 86,587.29

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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.