Home / 109,589.31-151,231.75-61,191.97

Finding the Fourth Proportional to 109,589.31, 151,231.75 and 61,191.97

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Solution

The fourth proportional to 109,589.31, 151,231.75 and 61,191.97 is: 84,444.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,589.31 : 151,231.75 = 61,191.97 : x
  2. Step 2: Convert to fraction form
    109,589.31/151,231.75 = 61,191.97/x
  3. Step 3: Cross multiply
    109,589.31x = 151,231.75 × 61,191.97
  4. Step 4: Simplify right side
    109,589.31x = 9,254,168,709.05
  5. Step 5: Solve for x
    x = 9,254,168,709.05/109,589.31
  6. Step 6: Final answer
    x = 84,444.08

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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.