Home / 102,959.73-142,077.48-57,016.07

Finding the Fourth Proportional to 102,959.73, 142,077.48 and 57,016.07

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Solution

The fourth proportional to 102,959.73, 142,077.48 and 57,016.07 is: 78,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,959.73 : 142,077.48 = 57,016.07 : x
  2. Step 2: Convert to fraction form
    102,959.73/142,077.48 = 57,016.07/x
  3. Step 3: Cross multiply
    102,959.73x = 142,077.48 × 57,016.07
  4. Step 4: Simplify right side
    102,959.73x = 8,100,699,260.02
  5. Step 5: Solve for x
    x = 8,100,699,260.02/102,959.73
  6. Step 6: Final answer
    x = 78,678.33

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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.