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Finding the Fourth Proportional to 129,992.96, 179,395.20 and 73,410.56

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Solution

The fourth proportional to 129,992.96, 179,395.20 and 73,410.56 is: 101,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,992.96 : 179,395.20 = 73,410.56 : x
  2. Step 2: Convert to fraction form
    129,992.96/179,395.20 = 73,410.56/x
  3. Step 3: Cross multiply
    129,992.96x = 179,395.20 × 73,410.56
  4. Step 4: Simplify right side
    129,992.96x = 13,169,502,093.31
  5. Step 5: Solve for x
    x = 13,169,502,093.31/129,992.96
  6. Step 6: Final answer
    x = 101,309.35

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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.