Home / 197,486.46-272,541.12-121,009.80

Finding the Fourth Proportional to 197,486.46, 272,541.12 and 121,009.80

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Solution

The fourth proportional to 197,486.46, 272,541.12 and 121,009.80 is: 166,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,486.46 : 272,541.12 = 121,009.80 : x
  2. Step 2: Convert to fraction form
    197,486.46/272,541.12 = 121,009.80/x
  3. Step 3: Cross multiply
    197,486.46x = 272,541.12 × 121,009.80
  4. Step 4: Simplify right side
    197,486.46x = 32,980,146,422.98
  5. Step 5: Solve for x
    x = 32,980,146,422.98/197,486.46
  6. Step 6: Final answer
    x = 166,999.53

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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.