Home / 115,462.47-159,448.26-109,172.46

Finding the Fourth Proportional to 115,462.47, 159,448.26 and 109,172.46

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Solution

The fourth proportional to 115,462.47, 159,448.26 and 109,172.46 is: 150,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,462.47 : 159,448.26 = 109,172.46 : x
  2. Step 2: Convert to fraction form
    115,462.47/159,448.26 = 109,172.46/x
  3. Step 3: Cross multiply
    115,462.47x = 159,448.26 × 109,172.46
  4. Step 4: Simplify right side
    115,462.47x = 17,407,358,786.92
  5. Step 5: Solve for x
    x = 17,407,358,786.92/115,462.47
  6. Step 6: Final answer
    x = 150,762.05

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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.