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Finding the Fourth Proportional to 146,545.20, 219,817.80 and 67,813.20

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Solution

The fourth proportional to 146,545.20, 219,817.80 and 67,813.20 is: 101,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,545.20 : 219,817.80 = 67,813.20 : x
  2. Step 2: Convert to fraction form
    146,545.20/219,817.80 = 67,813.20/x
  3. Step 3: Cross multiply
    146,545.20x = 219,817.80 × 67,813.20
  4. Step 4: Simplify right side
    146,545.20x = 14,906,548,434.96
  5. Step 5: Solve for x
    x = 14,906,548,434.96/146,545.20
  6. Step 6: Final answer
    x = 101,719.80

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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.