Home / 144,248.36-199,058.84-78,834.60

Finding the Fourth Proportional to 144,248.36, 199,058.84 and 78,834.60

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Solution

The fourth proportional to 144,248.36, 199,058.84 and 78,834.60 is: 108,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,248.36 : 199,058.84 = 78,834.60 : x
  2. Step 2: Convert to fraction form
    144,248.36/199,058.84 = 78,834.60/x
  3. Step 3: Cross multiply
    144,248.36x = 199,058.84 × 78,834.60
  4. Step 4: Simplify right side
    144,248.36x = 15,692,724,027.86
  5. Step 5: Solve for x
    x = 15,692,724,027.86/144,248.36
  6. Step 6: Final answer
    x = 108,789.62

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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.