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Finding the Fourth Proportional to 146,486.40, 219,729.60 and 93,739.20

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Solution

The fourth proportional to 146,486.40, 219,729.60 and 93,739.20 is: 140,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,486.40 : 219,729.60 = 93,739.20 : x
  2. Step 2: Convert to fraction form
    146,486.40/219,729.60 = 93,739.20/x
  3. Step 3: Cross multiply
    146,486.40x = 219,729.60 × 93,739.20
  4. Step 4: Simplify right side
    146,486.40x = 20,597,276,920.32
  5. Step 5: Solve for x
    x = 20,597,276,920.32/146,486.40
  6. Step 6: Final answer
    x = 140,608.80

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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.