Home / 140,722.86-194,195.21-76,191.57

Finding the Fourth Proportional to 140,722.86, 194,195.21 and 76,191.57

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Solution

The fourth proportional to 140,722.86, 194,195.21 and 76,191.57 is: 105,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,722.86 : 194,195.21 = 76,191.57 : x
  2. Step 2: Convert to fraction form
    140,722.86/194,195.21 = 76,191.57/x
  3. Step 3: Cross multiply
    140,722.86x = 194,195.21 × 76,191.57
  4. Step 4: Simplify right side
    140,722.86x = 14,796,038,283.65
  5. Step 5: Solve for x
    x = 14,796,038,283.65/140,722.86
  6. Step 6: Final answer
    x = 105,143.11

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1.5x scale

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.