Home / 161,837.21-223,335.39-90,215.69

Finding the Fourth Proportional to 161,837.21, 223,335.39 and 90,215.69

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Solution

The fourth proportional to 161,837.21, 223,335.39 and 90,215.69 is: 124,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,837.21 : 223,335.39 = 90,215.69 : x
  2. Step 2: Convert to fraction form
    161,837.21/223,335.39 = 90,215.69/x
  3. Step 3: Cross multiply
    161,837.21x = 223,335.39 × 90,215.69
  4. Step 4: Simplify right side
    161,837.21x = 20,148,356,310.27
  5. Step 5: Solve for x
    x = 20,148,356,310.27/161,837.21
  6. Step 6: Final answer
    x = 124,497.67

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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.