Home / 121,225.87-181,754.29-53,721.15

Finding the Fourth Proportional to 121,225.87, 181,754.29 and 53,721.15

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Solution

The fourth proportional to 121,225.87, 181,754.29 and 53,721.15 is: 80,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,225.87 : 181,754.29 = 53,721.15 : x
  2. Step 2: Convert to fraction form
    121,225.87/181,754.29 = 53,721.15/x
  3. Step 3: Cross multiply
    121,225.87x = 181,754.29 × 53,721.15
  4. Step 4: Simplify right side
    121,225.87x = 9,764,049,476.23
  5. Step 5: Solve for x
    x = 9,764,049,476.23/121,225.87
  6. Step 6: Final answer
    x = 80,544.27

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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.