Home / 99,927.10-149,562.60-77,619.70

Finding the Fourth Proportional to 99,927.10, 149,562.60 and 77,619.70

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Solution

The fourth proportional to 99,927.10, 149,562.60 and 77,619.70 is: 116,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,927.10 : 149,562.60 = 77,619.70 : x
  2. Step 2: Convert to fraction form
    99,927.10/149,562.60 = 77,619.70/x
  3. Step 3: Cross multiply
    99,927.10x = 149,562.60 × 77,619.70
  4. Step 4: Simplify right side
    99,927.10x = 11,609,004,143.22
  5. Step 5: Solve for x
    x = 11,609,004,143.22/99,927.10
  6. Step 6: Final answer
    x = 116,174.73

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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.