Home / 130,123.20-195,257.70-55,230.60

Finding the Fourth Proportional to 130,123.20, 195,257.70 and 55,230.60

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Solution

The fourth proportional to 130,123.20, 195,257.70 and 55,230.60 is: 82,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,123.20 : 195,257.70 = 55,230.60 : x
  2. Step 2: Convert to fraction form
    130,123.20/195,257.70 = 55,230.60/x
  3. Step 3: Cross multiply
    130,123.20x = 195,257.70 × 55,230.60
  4. Step 4: Simplify right side
    130,123.20x = 10,784,199,925.62
  5. Step 5: Solve for x
    x = 10,784,199,925.62/130,123.20
  6. Step 6: Final answer
    x = 82,876.84

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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.