Home / 140,709.45-194,178.96-77,047.23

Finding the Fourth Proportional to 140,709.45, 194,178.96 and 77,047.23

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Solution

The fourth proportional to 140,709.45, 194,178.96 and 77,047.23 is: 106,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709.45 : 194,178.96 = 77,047.23 : x
  2. Step 2: Convert to fraction form
    140,709.45/194,178.96 = 77,047.23/x
  3. Step 3: Cross multiply
    140,709.45x = 194,178.96 × 77,047.23
  4. Step 4: Simplify right side
    140,709.45x = 14,960,950,992.28
  5. Step 5: Solve for x
    x = 14,960,950,992.28/140,709.45
  6. Step 6: Final answer
    x = 106,325.13

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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.