Home / 187,086.85-280,658.05-68,748.95

Finding the Fourth Proportional to 187,086.85, 280,658.05 and 68,748.95

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Solution

The fourth proportional to 187,086.85, 280,658.05 and 68,748.95 is: 103,133.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,086.85 : 280,658.05 = 68,748.95 : x
  2. Step 2: Convert to fraction form
    187,086.85/280,658.05 = 68,748.95/x
  3. Step 3: Cross multiply
    187,086.85x = 280,658.05 × 68,748.95
  4. Step 4: Simplify right side
    187,086.85x = 19,294,946,776.32
  5. Step 5: Solve for x
    x = 19,294,946,776.32/187,086.85
  6. Step 6: Final answer
    x = 103,133.64

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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.