Home / 516,764.70-775,096.90-156,938.65

Finding the Fourth Proportional to 516,764.70, 775,096.90 and 156,938.65

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Solution

The fourth proportional to 516,764.70, 775,096.90 and 156,938.65 is: 235,392.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,764.70 : 775,096.90 = 156,938.65 : x
  2. Step 2: Convert to fraction form
    516,764.70/775,096.90 = 156,938.65/x
  3. Step 3: Cross multiply
    516,764.70x = 775,096.90 × 156,938.65
  4. Step 4: Simplify right side
    516,764.70x = 121,642,661,105.19
  5. Step 5: Solve for x
    x = 121,642,661,105.19/516,764.70
  6. Step 6: Final answer
    x = 235,392.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.