Home / 115,463.47-159,449.64-109,173.46

Finding the Fourth Proportional to 115,463.47, 159,449.64 and 109,173.46

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Solution

The fourth proportional to 115,463.47, 159,449.64 and 109,173.46 is: 150,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,463.47 : 159,449.64 = 109,173.46 : x
  2. Step 2: Convert to fraction form
    115,463.47/159,449.64 = 109,173.46/x
  3. Step 3: Cross multiply
    115,463.47x = 159,449.64 × 109,173.46
  4. Step 4: Simplify right side
    115,463.47x = 17,407,668,894.55
  5. Step 5: Solve for x
    x = 17,407,668,894.55/115,463.47
  6. Step 6: Final answer
    x = 150,763.43

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1.5x scale

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.