Home / 99,028.74-148,165.85-87,087.72

Finding the Fourth Proportional to 99,028.74, 148,165.85 and 87,087.72

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Solution

The fourth proportional to 99,028.74, 148,165.85 and 87,087.72 is: 130,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,028.74 : 148,165.85 = 87,087.72 : x
  2. Step 2: Convert to fraction form
    99,028.74/148,165.85 = 87,087.72/x
  3. Step 3: Cross multiply
    99,028.74x = 148,165.85 × 87,087.72
  4. Step 4: Simplify right side
    99,028.74x = 12,903,425,622.92
  5. Step 5: Solve for x
    x = 12,903,425,622.92/99,028.74
  6. Step 6: Final answer
    x = 130,299.81

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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.