Home / 99,439.84-149,200.80-40,260.43

Finding the Fourth Proportional to 99,439.84, 149,200.80 and 40,260.43

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Solution

The fourth proportional to 99,439.84, 149,200.80 and 40,260.43 is: 60,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,439.84 : 149,200.80 = 40,260.43 : x
  2. Step 2: Convert to fraction form
    99,439.84/149,200.80 = 40,260.43/x
  3. Step 3: Cross multiply
    99,439.84x = 149,200.80 × 40,260.43
  4. Step 4: Simplify right side
    99,439.84x = 6,006,888,364.34
  5. Step 5: Solve for x
    x = 6,006,888,364.34/99,439.84
  6. Step 6: Final answer
    x = 60,407.26

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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.