Home / 129,785.33-179,055.85-76,050.74

Finding the Fourth Proportional to 129,785.33, 179,055.85 and 76,050.74

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Solution

The fourth proportional to 129,785.33, 179,055.85 and 76,050.74 is: 104,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,785.33 : 179,055.85 = 76,050.74 : x
  2. Step 2: Convert to fraction form
    129,785.33/179,055.85 = 76,050.74/x
  3. Step 3: Cross multiply
    129,785.33x = 179,055.85 × 76,050.74
  4. Step 4: Simplify right side
    129,785.33x = 13,617,329,893.83
  5. Step 5: Solve for x
    x = 13,617,329,893.83/129,785.33
  6. Step 6: Final answer
    x = 104,921.95

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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.