Home / 211,806.24-317,642.05-69,618.70

Finding the Fourth Proportional to 211,806.24, 317,642.05 and 69,618.70

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Solution

The fourth proportional to 211,806.24, 317,642.05 and 69,618.70 is: 104,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,806.24 : 317,642.05 = 69,618.70 : x
  2. Step 2: Convert to fraction form
    211,806.24/317,642.05 = 69,618.70/x
  3. Step 3: Cross multiply
    211,806.24x = 317,642.05 × 69,618.70
  4. Step 4: Simplify right side
    211,806.24x = 22,113,826,586.34
  5. Step 5: Solve for x
    x = 22,113,826,586.34/211,806.24
  6. Step 6: Final answer
    x = 104,405.93

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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.