Home / 142,940.03-197,244.05-79,265.52

Finding the Fourth Proportional to 142,940.03, 197,244.05 and 79,265.52

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Solution

The fourth proportional to 142,940.03, 197,244.05 and 79,265.52 is: 109,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,940.03 : 197,244.05 = 79,265.52 : x
  2. Step 2: Convert to fraction form
    142,940.03/197,244.05 = 79,265.52/x
  3. Step 3: Cross multiply
    142,940.03x = 197,244.05 × 79,265.52
  4. Step 4: Simplify right side
    142,940.03x = 15,634,651,793.83
  5. Step 5: Solve for x
    x = 15,634,651,793.83/142,940.03
  6. Step 6: Final answer
    x = 109,379.10

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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.