Home / 96,120.48-143,979.66-77,298.60

Finding the Fourth Proportional to 96,120.48, 143,979.66 and 77,298.60

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Solution

The fourth proportional to 96,120.48, 143,979.66 and 77,298.60 is: 115,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,120.48 : 143,979.66 = 77,298.60 : x
  2. Step 2: Convert to fraction form
    96,120.48/143,979.66 = 77,298.60/x
  3. Step 3: Cross multiply
    96,120.48x = 143,979.66 × 77,298.60
  4. Step 4: Simplify right side
    96,120.48x = 11,129,426,146.48
  5. Step 5: Solve for x
    x = 11,129,426,146.48/96,120.48
  6. Step 6: Final answer
    x = 115,786.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.