Home / 99,098.10-148,319.10-76,790.70

Finding the Fourth Proportional to 99,098.10, 148,319.10 and 76,790.70

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Solution

The fourth proportional to 99,098.10, 148,319.10 and 76,790.70 is: 114,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,098.10 : 148,319.10 = 76,790.70 : x
  2. Step 2: Convert to fraction form
    99,098.10/148,319.10 = 76,790.70/x
  3. Step 3: Cross multiply
    99,098.10x = 148,319.10 × 76,790.70
  4. Step 4: Simplify right side
    99,098.10x = 11,389,527,512.37
  5. Step 5: Solve for x
    x = 11,389,527,512.37/99,098.10
  6. Step 6: Final answer
    x = 114,931.85

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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.