Home / 99,400.29-149,099.72-40,235.12

Finding the Fourth Proportional to 99,400.29, 149,099.72 and 40,235.12

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Solution

The fourth proportional to 99,400.29, 149,099.72 and 40,235.12 is: 60,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,400.29 : 149,099.72 = 40,235.12 : x
  2. Step 2: Convert to fraction form
    99,400.29/149,099.72 = 40,235.12/x
  3. Step 3: Cross multiply
    99,400.29x = 149,099.72 × 40,235.12
  4. Step 4: Simplify right side
    99,400.29x = 5,999,044,179.49
  5. Step 5: Solve for x
    x = 5,999,044,179.49/99,400.29
  6. Step 6: Final answer
    x = 60,352.38

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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.