Home / 187,748.51-281,725.25-79,661.21

Finding the Fourth Proportional to 187,748.51, 281,725.25 and 79,661.21

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Solution

The fourth proportional to 187,748.51, 281,725.25 and 79,661.21 is: 119,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,748.51 : 281,725.25 = 79,661.21 : x
  2. Step 2: Convert to fraction form
    187,748.51/281,725.25 = 79,661.21/x
  3. Step 3: Cross multiply
    187,748.51x = 281,725.25 × 79,661.21
  4. Step 4: Simplify right side
    187,748.51x = 22,442,572,495.62
  5. Step 5: Solve for x
    x = 22,442,572,495.62/187,748.51
  6. Step 6: Final answer
    x = 119,535.29

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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.