Home / 99,742.10-149,637.78-29,621.34

Finding the Fourth Proportional to 99,742.10, 149,637.78 and 29,621.34

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Solution

The fourth proportional to 99,742.10, 149,637.78 and 29,621.34 is: 44,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,742.10 : 149,637.78 = 29,621.34 : x
  2. Step 2: Convert to fraction form
    99,742.10/149,637.78 = 29,621.34/x
  3. Step 3: Cross multiply
    99,742.10x = 149,637.78 × 29,621.34
  4. Step 4: Simplify right side
    99,742.10x = 4,432,471,558.23
  5. Step 5: Solve for x
    x = 4,432,471,558.23/99,742.10
  6. Step 6: Final answer
    x = 44,439.33

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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.