Home / 142,949.50-197,265.25-79,293.22

Finding the Fourth Proportional to 142,949.50, 197,265.25 and 79,293.22

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Solution

The fourth proportional to 142,949.50, 197,265.25 and 79,293.22 is: 109,421.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,949.50 : 197,265.25 = 79,293.22 : x
  2. Step 2: Convert to fraction form
    142,949.50/197,265.25 = 79,293.22/x
  3. Step 3: Cross multiply
    142,949.50x = 197,265.25 × 79,293.22
  4. Step 4: Simplify right side
    142,949.50x = 15,641,796,866.61
  5. Step 5: Solve for x
    x = 15,641,796,866.61/142,949.50
  6. Step 6: Final answer
    x = 109,421.84

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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.