Home / 130,015.60-195,042.30-55,135.60

Finding the Fourth Proportional to 130,015.60, 195,042.30 and 55,135.60

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Solution

The fourth proportional to 130,015.60, 195,042.30 and 55,135.60 is: 82,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.60 : 195,042.30 = 55,135.60 : x
  2. Step 2: Convert to fraction form
    130,015.60/195,042.30 = 55,135.60/x
  3. Step 3: Cross multiply
    130,015.60x = 195,042.30 × 55,135.60
  4. Step 4: Simplify right side
    130,015.60x = 10,753,774,235.88
  5. Step 5: Solve for x
    x = 10,753,774,235.88/130,015.60
  6. Step 6: Final answer
    x = 82,711.41

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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.