Home / 142,487.44-196,626.76-77,956.36

Finding the Fourth Proportional to 142,487.44, 196,626.76 and 77,956.36

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Solution

The fourth proportional to 142,487.44, 196,626.76 and 77,956.36 is: 107,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,487.44 : 196,626.76 = 77,956.36 : x
  2. Step 2: Convert to fraction form
    142,487.44/196,626.76 = 77,956.36/x
  3. Step 3: Cross multiply
    142,487.44x = 196,626.76 × 77,956.36
  4. Step 4: Simplify right side
    142,487.44x = 15,328,306,488.19
  5. Step 5: Solve for x
    x = 15,328,306,488.19/142,487.44
  6. Step 6: Final answer
    x = 107,576.54

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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.