Home / 115,576.62-159,483.84-79,309.16

Finding the Fourth Proportional to 115,576.62, 159,483.84 and 79,309.16

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Solution

The fourth proportional to 115,576.62, 159,483.84 and 79,309.16 is: 109,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,576.62 : 159,483.84 = 79,309.16 : x
  2. Step 2: Convert to fraction form
    115,576.62/159,483.84 = 79,309.16/x
  3. Step 3: Cross multiply
    115,576.62x = 159,483.84 × 79,309.16
  4. Step 4: Simplify right side
    115,576.62x = 12,648,529,383.97
  5. Step 5: Solve for x
    x = 12,648,529,383.97/115,576.62
  6. Step 6: Final answer
    x = 109,438.48

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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.