Home / 142,582.03-196,760.82-78,918.46

Finding the Fourth Proportional to 142,582.03, 196,760.82 and 78,918.46

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Solution

The fourth proportional to 142,582.03, 196,760.82 and 78,918.46 is: 108,906.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,582.03 : 196,760.82 = 78,918.46 : x
  2. Step 2: Convert to fraction form
    142,582.03/196,760.82 = 78,918.46/x
  3. Step 3: Cross multiply
    142,582.03x = 196,760.82 × 78,918.46
  4. Step 4: Simplify right side
    142,582.03x = 15,528,060,902.74
  5. Step 5: Solve for x
    x = 15,528,060,902.74/142,582.03
  6. Step 6: Final answer
    x = 108,906.16

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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.