Home / 187,531.34-280,920.09-87,553.58

Finding the Fourth Proportional to 187,531.34, 280,920.09 and 87,553.58

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Solution

The fourth proportional to 187,531.34, 280,920.09 and 87,553.58 is: 131,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,531.34 : 280,920.09 = 87,553.58 : x
  2. Step 2: Convert to fraction form
    187,531.34/280,920.09 = 87,553.58/x
  3. Step 3: Cross multiply
    187,531.34x = 280,920.09 × 87,553.58
  4. Step 4: Simplify right side
    187,531.34x = 24,595,559,573.42
  5. Step 5: Solve for x
    x = 24,595,559,573.42/187,531.34
  6. Step 6: Final answer
    x = 131,154.40

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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.