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Finding the Fourth Proportional to 146,230.40, 219,345.60 and 84,022.40

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Solution

The fourth proportional to 146,230.40, 219,345.60 and 84,022.40 is: 126,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,230.40 : 219,345.60 = 84,022.40 : x
  2. Step 2: Convert to fraction form
    146,230.40/219,345.60 = 84,022.40/x
  3. Step 3: Cross multiply
    146,230.40x = 219,345.60 × 84,022.40
  4. Step 4: Simplify right side
    146,230.40x = 18,429,943,741.44
  5. Step 5: Solve for x
    x = 18,429,943,741.44/146,230.40
  6. Step 6: Final answer
    x = 126,033.60

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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.