Home / 140,894.02-194,438.73-77,231.80

Finding the Fourth Proportional to 140,894.02, 194,438.73 and 77,231.80

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Solution

The fourth proportional to 140,894.02, 194,438.73 and 77,231.80 is: 106,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,894.02 : 194,438.73 = 77,231.80 : x
  2. Step 2: Convert to fraction form
    140,894.02/194,438.73 = 77,231.80/x
  3. Step 3: Cross multiply
    140,894.02x = 194,438.73 × 77,231.80
  4. Step 4: Simplify right side
    140,894.02x = 15,016,853,107.61
  5. Step 5: Solve for x
    x = 15,016,853,107.61/140,894.02
  6. Step 6: Final answer
    x = 106,582.62

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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.