Home / 99,917.46-149,147.27-87,306

Finding the Fourth Proportional to 99,917.46, 149,147.27 and 87,306

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Solution

The fourth proportional to 99,917.46, 149,147.27 and 87,306 is: 130,322.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,917.46 : 149,147.27 = 87,306 : x
  2. Step 2: Convert to fraction form
    99,917.46/149,147.27 = 87,306/x
  3. Step 3: Cross multiply
    99,917.46x = 149,147.27 × 87,306
  4. Step 4: Simplify right side
    99,917.46x = 13,021,451,118.09
  5. Step 5: Solve for x
    x = 13,021,451,118.09/99,917.46
  6. Step 6: Final answer
    x = 130,322.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.