Home / 146,845.44-219,984.12-87,728.40

Finding the Fourth Proportional to 146,845.44, 219,984.12 and 87,728.40

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Solution

The fourth proportional to 146,845.44, 219,984.12 and 87,728.40 is: 131,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,845.44 : 219,984.12 = 87,728.40 : x
  2. Step 2: Convert to fraction form
    146,845.44/219,984.12 = 87,728.40/x
  3. Step 3: Cross multiply
    146,845.44x = 219,984.12 × 87,728.40
  4. Step 4: Simplify right side
    146,845.44x = 19,298,854,873.01
  5. Step 5: Solve for x
    x = 19,298,854,873.01/146,845.44
  6. Step 6: Final answer
    x = 131,422.91

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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.