Home / 99,485.28-149,181.12-40,275.90

Finding the Fourth Proportional to 99,485.28, 149,181.12 and 40,275.90

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Solution

The fourth proportional to 99,485.28, 149,181.12 and 40,275.90 is: 60,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,485.28 : 149,181.12 = 40,275.90 : x
  2. Step 2: Convert to fraction form
    99,485.28/149,181.12 = 40,275.90/x
  3. Step 3: Cross multiply
    99,485.28x = 149,181.12 × 40,275.90
  4. Step 4: Simplify right side
    99,485.28x = 6,008,403,871.01
  5. Step 5: Solve for x
    x = 6,008,403,871.01/99,485.28
  6. Step 6: Final answer
    x = 60,394.90

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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.