Home / 187,319.89-280,973.61-87,342.50

Finding the Fourth Proportional to 187,319.89, 280,973.61 and 87,342.50

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Solution

The fourth proportional to 187,319.89, 280,973.61 and 87,342.50 is: 131,010.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,319.89 : 280,973.61 = 87,342.50 : x
  2. Step 2: Convert to fraction form
    187,319.89/280,973.61 = 87,342.50/x
  3. Step 3: Cross multiply
    187,319.89x = 280,973.61 × 87,342.50
  4. Step 4: Simplify right side
    187,319.89x = 24,540,938,233.86
  5. Step 5: Solve for x
    x = 24,540,938,233.86/187,319.89
  6. Step 6: Final answer
    x = 131,010.85

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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.