Home / 140,690.29-194,144.91-77,015.77

Finding the Fourth Proportional to 140,690.29, 194,144.91 and 77,015.77

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Solution

The fourth proportional to 140,690.29, 194,144.91 and 77,015.77 is: 106,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,690.29 : 194,144.91 = 77,015.77 : x
  2. Step 2: Convert to fraction form
    140,690.29/194,144.91 = 77,015.77/x
  3. Step 3: Cross multiply
    140,690.29x = 194,144.91 × 77,015.77
  4. Step 4: Simplify right side
    140,690.29x = 14,952,219,735.23
  5. Step 5: Solve for x
    x = 14,952,219,735.23/140,690.29
  6. Step 6: Final answer
    x = 106,277.55

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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.