Home / 161,919.24-223,372.29-105,309.96

Finding the Fourth Proportional to 161,919.24, 223,372.29 and 105,309.96

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Solution

The fourth proportional to 161,919.24, 223,372.29 and 105,309.96 is: 145,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,919.24 : 223,372.29 = 105,309.96 : x
  2. Step 2: Convert to fraction form
    161,919.24/223,372.29 = 105,309.96/x
  3. Step 3: Cross multiply
    161,919.24x = 223,372.29 × 105,309.96
  4. Step 4: Simplify right side
    161,919.24x = 23,523,326,925.01
  5. Step 5: Solve for x
    x = 23,523,326,925.01/161,919.24
  6. Step 6: Final answer
    x = 145,278.15

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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.