Home / 187,749.51-281,726.75-79,662.21

Finding the Fourth Proportional to 187,749.51, 281,726.75 and 79,662.21

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Solution

The fourth proportional to 187,749.51, 281,726.75 and 79,662.21 is: 119,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,749.51 : 281,726.75 = 79,662.21 : x
  2. Step 2: Convert to fraction form
    187,749.51/281,726.75 = 79,662.21/x
  3. Step 3: Cross multiply
    187,749.51x = 281,726.75 × 79,662.21
  4. Step 4: Simplify right side
    187,749.51x = 22,442,975,521.12
  5. Step 5: Solve for x
    x = 22,442,975,521.12/187,749.51
  6. Step 6: Final answer
    x = 119,536.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.