Home / 92,822.20-139,079.70-78,998.20

Finding the Fourth Proportional to 92,822.20, 139,079.70 and 78,998.20

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Solution

The fourth proportional to 92,822.20, 139,079.70 and 78,998.20 is: 118,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,822.20 : 139,079.70 = 78,998.20 : x
  2. Step 2: Convert to fraction form
    92,822.20/139,079.70 = 78,998.20/x
  3. Step 3: Cross multiply
    92,822.20x = 139,079.70 × 78,998.20
  4. Step 4: Simplify right side
    92,822.20x = 10,987,045,956.54
  5. Step 5: Solve for x
    x = 10,987,045,956.54/92,822.20
  6. Step 6: Final answer
    x = 118,366.58

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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.