Home / 100,297.82-149,550.04-97,542.20

Finding the Fourth Proportional to 100,297.82, 149,550.04 and 97,542.20

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Solution

The fourth proportional to 100,297.82, 149,550.04 and 97,542.20 is: 145,441.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,297.82 : 149,550.04 = 97,542.20 : x
  2. Step 2: Convert to fraction form
    100,297.82/149,550.04 = 97,542.20/x
  3. Step 3: Cross multiply
    100,297.82x = 149,550.04 × 97,542.20
  4. Step 4: Simplify right side
    100,297.82x = 14,587,439,911.69
  5. Step 5: Solve for x
    x = 14,587,439,911.69/100,297.82
  6. Step 6: Final answer
    x = 145,441.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.