Home / 142,652.22-196,844.10-78,974.04

Finding the Fourth Proportional to 142,652.22, 196,844.10 and 78,974.04

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Solution

The fourth proportional to 142,652.22, 196,844.10 and 78,974.04 is: 108,975.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,652.22 : 196,844.10 = 78,974.04 : x
  2. Step 2: Convert to fraction form
    142,652.22/196,844.10 = 78,974.04/x
  3. Step 3: Cross multiply
    142,652.22x = 196,844.10 × 78,974.04
  4. Step 4: Simplify right side
    142,652.22x = 15,545,573,827.16
  5. Step 5: Solve for x
    x = 15,545,573,827.16/142,652.22
  6. Step 6: Final answer
    x = 108,975.34

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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.