Home / 146,005.20-219,007.80-120,085.20

Finding the Fourth Proportional to 146,005.20, 219,007.80 and 120,085.20

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Solution

The fourth proportional to 146,005.20, 219,007.80 and 120,085.20 is: 180,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,005.20 : 219,007.80 = 120,085.20 : x
  2. Step 2: Convert to fraction form
    146,005.20/219,007.80 = 120,085.20/x
  3. Step 3: Cross multiply
    146,005.20x = 219,007.80 × 120,085.20
  4. Step 4: Simplify right side
    146,005.20x = 26,299,595,464.56
  5. Step 5: Solve for x
    x = 26,299,595,464.56/146,005.20
  6. Step 6: Final answer
    x = 180,127.80

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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.