Home / 112,025.68-154,524.81-66,669.80

Finding the Fourth Proportional to 112,025.68, 154,524.81 and 66,669.80

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Solution

The fourth proportional to 112,025.68, 154,524.81 and 66,669.80 is: 91,962.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,025.68 : 154,524.81 = 66,669.80 : x
  2. Step 2: Convert to fraction form
    112,025.68/154,524.81 = 66,669.80/x
  3. Step 3: Cross multiply
    112,025.68x = 154,524.81 × 66,669.80
  4. Step 4: Simplify right side
    112,025.68x = 10,302,138,524.33
  5. Step 5: Solve for x
    x = 10,302,138,524.33/112,025.68
  6. Step 6: Final answer
    x = 91,962.29

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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.