Home / 161,834.22-223,338.78-90,214.65

Finding the Fourth Proportional to 161,834.22, 223,338.78 and 90,214.65

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Solution

The fourth proportional to 161,834.22, 223,338.78 and 90,214.65 is: 124,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,834.22 : 223,338.78 = 90,214.65 : x
  2. Step 2: Convert to fraction form
    161,834.22/223,338.78 = 90,214.65/x
  3. Step 3: Cross multiply
    161,834.22x = 223,338.78 × 90,214.65
  4. Step 4: Simplify right side
    161,834.22x = 20,148,429,869.13
  5. Step 5: Solve for x
    x = 20,148,429,869.13/161,834.22
  6. Step 6: Final answer
    x = 124,500.43

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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.