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Finding the Fourth Proportional to 98,997.62, 148,503.72 and 28,878.80

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Solution

The fourth proportional to 98,997.62, 148,503.72 and 28,878.80 is: 43,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,997.62 : 148,503.72 = 28,878.80 : x
  2. Step 2: Convert to fraction form
    98,997.62/148,503.72 = 28,878.80/x
  3. Step 3: Cross multiply
    98,997.62x = 148,503.72 × 28,878.80
  4. Step 4: Simplify right side
    98,997.62x = 4,288,609,229.14
  5. Step 5: Solve for x
    x = 4,288,609,229.14/98,997.62
  6. Step 6: Final answer
    x = 43,320.33

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1.5x scale

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.