Home / 113,566.14-155,586.16-109,309.65

Finding the Fourth Proportional to 113,566.14, 155,586.16 and 109,309.65

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Solution

The fourth proportional to 113,566.14, 155,586.16 and 109,309.65 is: 149,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,566.14 : 155,586.16 = 109,309.65 : x
  2. Step 2: Convert to fraction form
    113,566.14/155,586.16 = 109,309.65/x
  3. Step 3: Cross multiply
    113,566.14x = 155,586.16 × 109,309.65
  4. Step 4: Simplify right side
    113,566.14x = 17,007,069,619.48
  5. Step 5: Solve for x
    x = 17,007,069,619.48/113,566.14
  6. Step 6: Final answer
    x = 149,754.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.