Home / 92,211.40-138,317.10-67,133.80

Finding the Fourth Proportional to 92,211.40, 138,317.10 and 67,133.80

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Solution

The fourth proportional to 92,211.40, 138,317.10 and 67,133.80 is: 100,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,211.40 : 138,317.10 = 67,133.80 : x
  2. Step 2: Convert to fraction form
    92,211.40/138,317.10 = 67,133.80/x
  3. Step 3: Cross multiply
    92,211.40x = 138,317.10 × 67,133.80
  4. Step 4: Simplify right side
    92,211.40x = 9,285,752,527.98
  5. Step 5: Solve for x
    x = 9,285,752,527.98/92,211.40
  6. Step 6: Final answer
    x = 100,700.70

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1.5x scale

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.