Home / 129,342.06-178,465.26-75,616.68

Finding the Fourth Proportional to 129,342.06, 178,465.26 and 75,616.68

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Solution

The fourth proportional to 129,342.06, 178,465.26 and 75,616.68 is: 104,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,342.06 : 178,465.26 = 75,616.68 : x
  2. Step 2: Convert to fraction form
    129,342.06/178,465.26 = 75,616.68/x
  3. Step 3: Cross multiply
    129,342.06x = 178,465.26 × 75,616.68
  4. Step 4: Simplify right side
    129,342.06x = 13,494,950,456.54
  5. Step 5: Solve for x
    x = 13,494,950,456.54/129,342.06
  6. Step 6: Final answer
    x = 104,335.36

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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.