Home / 187,478.58-258,680.43-111,021.69

Finding the Fourth Proportional to 187,478.58, 258,680.43 and 111,021.69

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Solution

The fourth proportional to 187,478.58, 258,680.43 and 111,021.69 is: 153,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,478.58 : 258,680.43 = 111,021.69 : x
  2. Step 2: Convert to fraction form
    187,478.58/258,680.43 = 111,021.69/x
  3. Step 3: Cross multiply
    187,478.58x = 258,680.43 × 111,021.69
  4. Step 4: Simplify right side
    187,478.58x = 28,719,138,508.53
  5. Step 5: Solve for x
    x = 28,719,138,508.53/187,478.58
  6. Step 6: Final answer
    x = 153,186.24

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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.