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Finding the Fourth Proportional to 98,999.80, 148,596.90 and 49,136.20

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Solution

The fourth proportional to 98,999.80, 148,596.90 and 49,136.20 is: 73,752.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,999.80 : 148,596.90 = 49,136.20 : x
  2. Step 2: Convert to fraction form
    98,999.80/148,596.90 = 49,136.20/x
  3. Step 3: Cross multiply
    98,999.80x = 148,596.90 × 49,136.20
  4. Step 4: Simplify right side
    98,999.80x = 7,301,486,997.78
  5. Step 5: Solve for x
    x = 7,301,486,997.78/98,999.80
  6. Step 6: Final answer
    x = 73,752.54

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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.