Home / 197,165.64-272,115.05-111,141.37

Finding the Fourth Proportional to 197,165.64, 272,115.05 and 111,141.37

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Solution

The fourth proportional to 197,165.64, 272,115.05 and 111,141.37 is: 153,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,165.64 : 272,115.05 = 111,141.37 : x
  2. Step 2: Convert to fraction form
    197,165.64/272,115.05 = 111,141.37/x
  3. Step 3: Cross multiply
    197,165.64x = 272,115.05 × 111,141.37
  4. Step 4: Simplify right side
    197,165.64x = 30,243,237,708.41
  5. Step 5: Solve for x
    x = 30,243,237,708.41/197,165.64
  6. Step 6: Final answer
    x = 153,390.00

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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.