Home / 99,438.84-149,199.30-40,259.43

Finding the Fourth Proportional to 99,438.84, 149,199.30 and 40,259.43

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Solution

The fourth proportional to 99,438.84, 149,199.30 and 40,259.43 is: 60,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.84 : 149,199.30 = 40,259.43 : x
  2. Step 2: Convert to fraction form
    99,438.84/149,199.30 = 40,259.43/x
  3. Step 3: Cross multiply
    99,438.84x = 149,199.30 × 40,259.43
  4. Step 4: Simplify right side
    99,438.84x = 6,006,678,774.40
  5. Step 5: Solve for x
    x = 6,006,678,774.40/99,438.84
  6. Step 6: Final answer
    x = 60,405.76

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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.