Home / 115,358.68-159,190.06-65,062.36

Finding the Fourth Proportional to 115,358.68, 159,190.06 and 65,062.36

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Solution

The fourth proportional to 115,358.68, 159,190.06 and 65,062.36 is: 89,783.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,358.68 : 159,190.06 = 65,062.36 : x
  2. Step 2: Convert to fraction form
    115,358.68/159,190.06 = 65,062.36/x
  3. Step 3: Cross multiply
    115,358.68x = 159,190.06 × 65,062.36
  4. Step 4: Simplify right side
    115,358.68x = 10,357,280,992.14
  5. Step 5: Solve for x
    x = 10,357,280,992.14/115,358.68
  6. Step 6: Final answer
    x = 89,783.28

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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.