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Finding the Fourth Proportional to 146,387.60, 202,015.60 and 79,319.60

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Solution

The fourth proportional to 146,387.60, 202,015.60 and 79,319.60 is: 109,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,387.60 : 202,015.60 = 79,319.60 : x
  2. Step 2: Convert to fraction form
    146,387.60/202,015.60 = 79,319.60/x
  3. Step 3: Cross multiply
    146,387.60x = 202,015.60 × 79,319.60
  4. Step 4: Simplify right side
    146,387.60x = 16,023,796,585.76
  5. Step 5: Solve for x
    x = 16,023,796,585.76/146,387.60
  6. Step 6: Final answer
    x = 109,461.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.