Home / 189,675.18-261,748.64-103,632.31

Finding the Fourth Proportional to 189,675.18, 261,748.64 and 103,632.31

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Solution

The fourth proportional to 189,675.18, 261,748.64 and 103,632.31 is: 143,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,675.18 : 261,748.64 = 103,632.31 : x
  2. Step 2: Convert to fraction form
    189,675.18/261,748.64 = 103,632.31/x
  3. Step 3: Cross multiply
    189,675.18x = 261,748.64 × 103,632.31
  4. Step 4: Simplify right side
    189,675.18x = 27,125,614,375.65
  5. Step 5: Solve for x
    x = 27,125,614,375.65/189,675.18
  6. Step 6: Final answer
    x = 143,010.88

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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.