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Finding the Fourth Proportional to 146,515.80, 219,846.60 and 83,384.40

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Solution

The fourth proportional to 146,515.80, 219,846.60 and 83,384.40 is: 125,118.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,515.80 : 219,846.60 = 83,384.40 : x
  2. Step 2: Convert to fraction form
    146,515.80/219,846.60 = 83,384.40/x
  3. Step 3: Cross multiply
    146,515.80x = 219,846.60 × 83,384.40
  4. Step 4: Simplify right side
    146,515.80x = 18,331,776,833.04
  5. Step 5: Solve for x
    x = 18,331,776,833.04/146,515.80
  6. Step 6: Final answer
    x = 125,118.09

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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.