Home / 115,964.88-160,002.72-73,507.92

Finding the Fourth Proportional to 115,964.88, 160,002.72 and 73,507.92

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Solution

The fourth proportional to 115,964.88, 160,002.72 and 73,507.92 is: 101,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,964.88 : 160,002.72 = 73,507.92 : x
  2. Step 2: Convert to fraction form
    115,964.88/160,002.72 = 73,507.92/x
  3. Step 3: Cross multiply
    115,964.88x = 160,002.72 × 73,507.92
  4. Step 4: Simplify right side
    115,964.88x = 11,761,467,141.54
  5. Step 5: Solve for x
    x = 11,761,467,141.54/115,964.88
  6. Step 6: Final answer
    x = 101,422.66

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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.