Home / 185,721.19-278,692.47-67,401.77

Finding the Fourth Proportional to 185,721.19, 278,692.47 and 67,401.77

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Solution

The fourth proportional to 185,721.19, 278,692.47 and 67,401.77 is: 101,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,721.19 : 278,692.47 = 67,401.77 : x
  2. Step 2: Convert to fraction form
    185,721.19/278,692.47 = 67,401.77/x
  3. Step 3: Cross multiply
    185,721.19x = 278,692.47 × 67,401.77
  4. Step 4: Simplify right side
    185,721.19x = 18,784,364,370.21
  5. Step 5: Solve for x
    x = 18,784,364,370.21/185,721.19
  6. Step 6: Final answer
    x = 101,142.82

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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.