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Finding the Fourth Proportional to 99,093.60, 148,640.40 and 63,664.20

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Solution

The fourth proportional to 99,093.60, 148,640.40 and 63,664.20 is: 95,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,093.60 : 148,640.40 = 63,664.20 : x
  2. Step 2: Convert to fraction form
    99,093.60/148,640.40 = 63,664.20/x
  3. Step 3: Cross multiply
    99,093.60x = 148,640.40 × 63,664.20
  4. Step 4: Simplify right side
    99,093.60x = 9,463,072,153.68
  5. Step 5: Solve for x
    x = 9,463,072,153.68/99,093.60
  6. Step 6: Final answer
    x = 95,496.30

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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.