Home / 144,187.54-197,533.61-138,796.72

Finding the Fourth Proportional to 144,187.54, 197,533.61 and 138,796.72

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Solution

The fourth proportional to 144,187.54, 197,533.61 and 138,796.72 is: 190,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,187.54 : 197,533.61 = 138,796.72 : x
  2. Step 2: Convert to fraction form
    144,187.54/197,533.61 = 138,796.72/x
  3. Step 3: Cross multiply
    144,187.54x = 197,533.61 × 138,796.72
  4. Step 4: Simplify right side
    144,187.54x = 27,417,015,823.10
  5. Step 5: Solve for x
    x = 27,417,015,823.10/144,187.54
  6. Step 6: Final answer
    x = 190,148.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.