Home / 99,318.20-148,977.30-88,431.80

Finding the Fourth Proportional to 99,318.20, 148,977.30 and 88,431.80

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Solution

The fourth proportional to 99,318.20, 148,977.30 and 88,431.80 is: 132,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,318.20 : 148,977.30 = 88,431.80 : x
  2. Step 2: Convert to fraction form
    99,318.20/148,977.30 = 88,431.80/x
  3. Step 3: Cross multiply
    99,318.20x = 148,977.30 × 88,431.80
  4. Step 4: Simplify right side
    99,318.20x = 13,174,330,798.14
  5. Step 5: Solve for x
    x = 13,174,330,798.14/99,318.20
  6. Step 6: Final answer
    x = 132,647.70

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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.