Home / 161,835.22-223,340.16-90,215.65

Finding the Fourth Proportional to 161,835.22, 223,340.16 and 90,215.65

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Solution

The fourth proportional to 161,835.22, 223,340.16 and 90,215.65 is: 124,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,835.22 : 223,340.16 = 90,215.65 : x
  2. Step 2: Convert to fraction form
    161,835.22/223,340.16 = 90,215.65/x
  3. Step 3: Cross multiply
    161,835.22x = 223,340.16 × 90,215.65
  4. Step 4: Simplify right side
    161,835.22x = 20,148,777,705.50
  5. Step 5: Solve for x
    x = 20,148,777,705.50/161,835.22
  6. Step 6: Final answer
    x = 124,501.81

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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.