Home / 142,626.93-196,828.18-78,098.88

Finding the Fourth Proportional to 142,626.93, 196,828.18 and 78,098.88

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Solution

The fourth proportional to 142,626.93, 196,828.18 and 78,098.88 is: 107,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,626.93 : 196,828.18 = 78,098.88 : x
  2. Step 2: Convert to fraction form
    142,626.93/196,828.18 = 78,098.88/x
  3. Step 3: Cross multiply
    142,626.93x = 196,828.18 × 78,098.88
  4. Step 4: Simplify right side
    142,626.93x = 15,372,060,953.30
  5. Step 5: Solve for x
    x = 15,372,060,953.30/142,626.93
  6. Step 6: Final answer
    x = 107,778.11

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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.