Home / 140,690.79-194,145.60-77,016.27

Finding the Fourth Proportional to 140,690.79, 194,145.60 and 77,016.27

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Solution

The fourth proportional to 140,690.79, 194,145.60 and 77,016.27 is: 106,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,690.79 : 194,145.60 = 77,016.27 : x
  2. Step 2: Convert to fraction form
    140,690.79/194,145.60 = 77,016.27/x
  3. Step 3: Cross multiply
    140,690.79x = 194,145.60 × 77,016.27
  4. Step 4: Simplify right side
    140,690.79x = 14,952,369,948.91
  5. Step 5: Solve for x
    x = 14,952,369,948.91/140,690.79
  6. Step 6: Final answer
    x = 106,278.24

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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.