Home / 99,647.15-149,557.08-52,295.70

Finding the Fourth Proportional to 99,647.15, 149,557.08 and 52,295.70

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Solution

The fourth proportional to 99,647.15, 149,557.08 and 52,295.70 is: 78,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,647.15 : 149,557.08 = 52,295.70 : x
  2. Step 2: Convert to fraction form
    99,647.15/149,557.08 = 52,295.70/x
  3. Step 3: Cross multiply
    99,647.15x = 149,557.08 × 52,295.70
  4. Step 4: Simplify right side
    99,647.15x = 7,821,192,188.56
  5. Step 5: Solve for x
    x = 7,821,192,188.56/99,647.15
  6. Step 6: Final answer
    x = 78,488.87

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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.