Home / 140,760.02-194,248.85-77,100.09

Finding the Fourth Proportional to 140,760.02, 194,248.85 and 77,100.09

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Solution

The fourth proportional to 140,760.02, 194,248.85 and 77,100.09 is: 106,398.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,760.02 : 194,248.85 = 77,100.09 : x
  2. Step 2: Convert to fraction form
    140,760.02/194,248.85 = 77,100.09/x
  3. Step 3: Cross multiply
    140,760.02x = 194,248.85 × 77,100.09
  4. Step 4: Simplify right side
    140,760.02x = 14,976,603,817.40
  5. Step 5: Solve for x
    x = 14,976,603,817.40/140,760.02
  6. Step 6: Final answer
    x = 106,398.14

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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.