Home / 168,997.50-253,618.37-66,430.11

Finding the Fourth Proportional to 168,997.50, 253,618.37 and 66,430.11

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Solution

The fourth proportional to 168,997.50, 253,618.37 and 66,430.11 is: 99,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,997.50 : 253,618.37 = 66,430.11 : x
  2. Step 2: Convert to fraction form
    168,997.50/253,618.37 = 66,430.11/x
  3. Step 3: Cross multiply
    168,997.50x = 253,618.37 × 66,430.11
  4. Step 4: Simplify right side
    168,997.50x = 16,847,896,217.12
  5. Step 5: Solve for x
    x = 16,847,896,217.12/168,997.50
  6. Step 6: Final answer
    x = 99,693.17

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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.