Home / 120,727.57-181,128.44-57,628.21

Finding the Fourth Proportional to 120,727.57, 181,128.44 and 57,628.21

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Solution

The fourth proportional to 120,727.57, 181,128.44 and 57,628.21 is: 86,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,727.57 : 181,128.44 = 57,628.21 : x
  2. Step 2: Convert to fraction form
    120,727.57/181,128.44 = 57,628.21/x
  3. Step 3: Cross multiply
    120,727.57x = 181,128.44 × 57,628.21
  4. Step 4: Simplify right side
    120,727.57x = 10,438,107,489.15
  5. Step 5: Solve for x
    x = 10,438,107,489.15/120,727.57
  6. Step 6: Final answer
    x = 86,460.01

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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.