Home / 98,983.70-148,475.55-76,865.30

Finding the Fourth Proportional to 98,983.70, 148,475.55 and 76,865.30

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Solution

The fourth proportional to 98,983.70, 148,475.55 and 76,865.30 is: 115,297.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,983.70 : 148,475.55 = 76,865.30 : x
  2. Step 2: Convert to fraction form
    98,983.70/148,475.55 = 76,865.30/x
  3. Step 3: Cross multiply
    98,983.70x = 148,475.55 × 76,865.30
  4. Step 4: Simplify right side
    98,983.70x = 11,412,617,693.42
  5. Step 5: Solve for x
    x = 11,412,617,693.42/98,983.70
  6. Step 6: Final answer
    x = 115,297.95

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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.