Home / 98,997.72-148,499.04-84,869.70

Finding the Fourth Proportional to 98,997.72, 148,499.04 and 84,869.70

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Solution

The fourth proportional to 98,997.72, 148,499.04 and 84,869.70 is: 127,306.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,997.72 : 148,499.04 = 84,869.70 : x
  2. Step 2: Convert to fraction form
    98,997.72/148,499.04 = 84,869.70/x
  3. Step 3: Cross multiply
    98,997.72x = 148,499.04 × 84,869.70
  4. Step 4: Simplify right side
    98,997.72x = 12,603,068,975.09
  5. Step 5: Solve for x
    x = 12,603,068,975.09/98,997.72
  6. Step 6: Final answer
    x = 127,306.66

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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.