Home / 89,852.20-134,778.30-82,853.80

Finding the Fourth Proportional to 89,852.20, 134,778.30 and 82,853.80

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Solution

The fourth proportional to 89,852.20, 134,778.30 and 82,853.80 is: 124,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,852.20 : 134,778.30 = 82,853.80 : x
  2. Step 2: Convert to fraction form
    89,852.20/134,778.30 = 82,853.80/x
  3. Step 3: Cross multiply
    89,852.20x = 134,778.30 × 82,853.80
  4. Step 4: Simplify right side
    89,852.20x = 11,166,894,312.54
  5. Step 5: Solve for x
    x = 11,166,894,312.54/89,852.20
  6. Step 6: Final answer
    x = 124,280.70

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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.