Home / 146,121.90-219,182.85-57,378.30

Finding the Fourth Proportional to 146,121.90, 219,182.85 and 57,378.30

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Solution

The fourth proportional to 146,121.90, 219,182.85 and 57,378.30 is: 86,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,121.90 : 219,182.85 = 57,378.30 : x
  2. Step 2: Convert to fraction form
    146,121.90/219,182.85 = 57,378.30/x
  3. Step 3: Cross multiply
    146,121.90x = 219,182.85 × 57,378.30
  4. Step 4: Simplify right side
    146,121.90x = 12,576,339,322.16
  5. Step 5: Solve for x
    x = 12,576,339,322.16/146,121.90
  6. Step 6: Final answer
    x = 86,067.45

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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.