Home / 516,749.40-775,139.22-142,772.76

Finding the Fourth Proportional to 516,749.40, 775,139.22 and 142,772.76

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Solution

The fourth proportional to 516,749.40, 775,139.22 and 142,772.76 is: 214,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,749.40 : 775,139.22 = 142,772.76 : x
  2. Step 2: Convert to fraction form
    516,749.40/775,139.22 = 142,772.76/x
  3. Step 3: Cross multiply
    516,749.40x = 775,139.22 × 142,772.76
  4. Step 4: Simplify right side
    516,749.40x = 110,668,765,823.65
  5. Step 5: Solve for x
    x = 110,668,765,823.65/516,749.40
  6. Step 6: Final answer
    x = 214,163.32

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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.