Home / 129,957.24-179,287.62-87,529.32

Finding the Fourth Proportional to 129,957.24, 179,287.62 and 87,529.32

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Solution

The fourth proportional to 129,957.24, 179,287.62 and 87,529.32 is: 120,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,957.24 : 179,287.62 = 87,529.32 : x
  2. Step 2: Convert to fraction form
    129,957.24/179,287.62 = 87,529.32/x
  3. Step 3: Cross multiply
    129,957.24x = 179,287.62 × 87,529.32
  4. Step 4: Simplify right side
    129,957.24x = 15,692,923,463.02
  5. Step 5: Solve for x
    x = 15,692,923,463.02/129,957.24
  6. Step 6: Final answer
    x = 120,754.51

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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.