Home / 147,038.40-220,120.20-87,843.60

Finding the Fourth Proportional to 147,038.40, 220,120.20 and 87,843.60

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Solution

The fourth proportional to 147,038.40, 220,120.20 and 87,843.60 is: 131,504.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,038.40 : 220,120.20 = 87,843.60 : x
  2. Step 2: Convert to fraction form
    147,038.40/220,120.20 = 87,843.60/x
  3. Step 3: Cross multiply
    147,038.40x = 220,120.20 × 87,843.60
  4. Step 4: Simplify right side
    147,038.40x = 19,336,150,800.72
  5. Step 5: Solve for x
    x = 19,336,150,800.72/147,038.40
  6. Step 6: Final answer
    x = 131,504.09

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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.