Home / 197,727.54-272,869.01-121,288.79

Finding the Fourth Proportional to 197,727.54, 272,869.01 and 121,288.79

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Solution

The fourth proportional to 197,727.54, 272,869.01 and 121,288.79 is: 167,381.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,727.54 : 272,869.01 = 121,288.79 : x
  2. Step 2: Convert to fraction form
    197,727.54/272,869.01 = 121,288.79/x
  3. Step 3: Cross multiply
    197,727.54x = 272,869.01 × 121,288.79
  4. Step 4: Simplify right side
    197,727.54x = 33,095,950,080.61
  5. Step 5: Solve for x
    x = 33,095,950,080.61/197,727.54
  6. Step 6: Final answer
    x = 167,381.59

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1.5x scale

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.