Home / 163,175.12-225,181.44-91,561.80

Finding the Fourth Proportional to 163,175.12, 225,181.44 and 91,561.80

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Solution

The fourth proportional to 163,175.12, 225,181.44 and 91,561.80 is: 126,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,175.12 : 225,181.44 = 91,561.80 : x
  2. Step 2: Convert to fraction form
    163,175.12/225,181.44 = 91,561.80/x
  3. Step 3: Cross multiply
    163,175.12x = 225,181.44 × 91,561.80
  4. Step 4: Simplify right side
    163,175.12x = 20,618,017,972.99
  5. Step 5: Solve for x
    x = 20,618,017,972.99/163,175.12
  6. Step 6: Final answer
    x = 126,355.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.