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Finding the Fourth Proportional to 146,920.60, 220,611.30 and 84,712.60

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Solution

The fourth proportional to 146,920.60, 220,611.30 and 84,712.60 is: 127,201.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,920.60 : 220,611.30 = 84,712.60 : x
  2. Step 2: Convert to fraction form
    146,920.60/220,611.30 = 84,712.60/x
  3. Step 3: Cross multiply
    146,920.60x = 220,611.30 × 84,712.60
  4. Step 4: Simplify right side
    146,920.60x = 18,688,556,812.38
  5. Step 5: Solve for x
    x = 18,688,556,812.38/146,920.60
  6. Step 6: Final answer
    x = 127,201.75

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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.