Home / 142,487.92-212,679.56-125,678.44

Finding the Fourth Proportional to 142,487.92, 212,679.56 and 125,678.44

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Solution

The fourth proportional to 142,487.92, 212,679.56 and 125,678.44 is: 187,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,487.92 : 212,679.56 = 125,678.44 : x
  2. Step 2: Convert to fraction form
    142,487.92/212,679.56 = 125,678.44/x
  3. Step 3: Cross multiply
    142,487.92x = 212,679.56 × 125,678.44
  4. Step 4: Simplify right side
    142,487.92x = 26,729,233,628.90
  5. Step 5: Solve for x
    x = 26,729,233,628.90/142,487.92
  6. Step 6: Final answer
    x = 187,589.48

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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.