Home / 84,572.82-126,238.46-74,607.66

Finding the Fourth Proportional to 84,572.82, 126,238.46 and 74,607.66

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Solution

The fourth proportional to 84,572.82, 126,238.46 and 74,607.66 is: 111,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,572.82 : 126,238.46 = 74,607.66 : x
  2. Step 2: Convert to fraction form
    84,572.82/126,238.46 = 74,607.66/x
  3. Step 3: Cross multiply
    84,572.82x = 126,238.46 × 74,607.66
  4. Step 4: Simplify right side
    84,572.82x = 9,418,356,102.60
  5. Step 5: Solve for x
    x = 9,418,356,102.60/84,572.82
  6. Step 6: Final answer
    x = 111,363.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.