Home / 121,268.40-181,902.60-38,162.40

Finding the Fourth Proportional to 121,268.40, 181,902.60 and 38,162.40

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Solution

The fourth proportional to 121,268.40, 181,902.60 and 38,162.40 is: 57,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,268.40 : 181,902.60 = 38,162.40 : x
  2. Step 2: Convert to fraction form
    121,268.40/181,902.60 = 38,162.40/x
  3. Step 3: Cross multiply
    121,268.40x = 181,902.60 × 38,162.40
  4. Step 4: Simplify right side
    121,268.40x = 6,941,839,782.24
  5. Step 5: Solve for x
    x = 6,941,839,782.24/121,268.40
  6. Step 6: Final answer
    x = 57,243.60

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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.