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Finding the Fourth Proportional to 99,099.56, 148,672.04 and 42,949.10

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Solution

The fourth proportional to 99,099.56, 148,672.04 and 42,949.10 is: 64,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,099.56 : 148,672.04 = 42,949.10 : x
  2. Step 2: Convert to fraction form
    99,099.56/148,672.04 = 42,949.10/x
  3. Step 3: Cross multiply
    99,099.56x = 148,672.04 × 42,949.10
  4. Step 4: Simplify right side
    99,099.56x = 6,385,330,313.16
  5. Step 5: Solve for x
    x = 6,385,330,313.16/99,099.56
  6. Step 6: Final answer
    x = 64,433.49

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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.