Home / 154,359.73-213,027.87-86,383.52

Finding the Fourth Proportional to 154,359.73, 213,027.87 and 86,383.52

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Solution

The fourth proportional to 154,359.73, 213,027.87 and 86,383.52 is: 119,215.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,359.73 : 213,027.87 = 86,383.52 : x
  2. Step 2: Convert to fraction form
    154,359.73/213,027.87 = 86,383.52/x
  3. Step 3: Cross multiply
    154,359.73x = 213,027.87 × 86,383.52
  4. Step 4: Simplify right side
    154,359.73x = 18,402,097,268.70
  5. Step 5: Solve for x
    x = 18,402,097,268.70/154,359.73
  6. Step 6: Final answer
    x = 119,215.66

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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.