Home / 161,971.24-223,520.64-90,349.42

Finding the Fourth Proportional to 161,971.24, 223,520.64 and 90,349.42

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Solution

The fourth proportional to 161,971.24, 223,520.64 and 90,349.42 is: 124,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,971.24 : 223,520.64 = 90,349.42 : x
  2. Step 2: Convert to fraction form
    161,971.24/223,520.64 = 90,349.42/x
  3. Step 3: Cross multiply
    161,971.24x = 223,520.64 × 90,349.42
  4. Step 4: Simplify right side
    161,971.24x = 20,194,960,182.03
  5. Step 5: Solve for x
    x = 20,194,960,182.03/161,971.24
  6. Step 6: Final answer
    x = 124,682.38

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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.