Home / 197,727.04-272,868.32-121,288.28

Finding the Fourth Proportional to 197,727.04, 272,868.32 and 121,288.28

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Solution

The fourth proportional to 197,727.04, 272,868.32 and 121,288.28 is: 167,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,727.04 : 272,868.32 = 121,288.28 : x
  2. Step 2: Convert to fraction form
    197,727.04/272,868.32 = 121,288.28/x
  3. Step 3: Cross multiply
    197,727.04x = 272,868.32 × 121,288.28
  4. Step 4: Simplify right side
    197,727.04x = 33,095,729,275.02
  5. Step 5: Solve for x
    x = 33,095,729,275.02/197,727.04
  6. Step 6: Final answer
    x = 167,380.90

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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.