Home / 121,016.30-181,524.45-112,268.30

Finding the Fourth Proportional to 121,016.30, 181,524.45 and 112,268.30

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Solution

The fourth proportional to 121,016.30, 181,524.45 and 112,268.30 is: 168,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,016.30 : 181,524.45 = 112,268.30 : x
  2. Step 2: Convert to fraction form
    121,016.30/181,524.45 = 112,268.30/x
  3. Step 3: Cross multiply
    121,016.30x = 181,524.45 × 112,268.30
  4. Step 4: Simplify right side
    121,016.30x = 20,379,441,409.94
  5. Step 5: Solve for x
    x = 20,379,441,409.94/121,016.30
  6. Step 6: Final answer
    x = 168,402.45

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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.