Home / 125,134.92-172,689.69-76,076.46

Finding the Fourth Proportional to 125,134.92, 172,689.69 and 76,076.46

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Solution

The fourth proportional to 125,134.92, 172,689.69 and 76,076.46 is: 104,987.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,134.92 : 172,689.69 = 76,076.46 : x
  2. Step 2: Convert to fraction form
    125,134.92/172,689.69 = 76,076.46/x
  3. Step 3: Cross multiply
    125,134.92x = 172,689.69 × 76,076.46
  4. Step 4: Simplify right side
    125,134.92x = 13,137,620,293.70
  5. Step 5: Solve for x
    x = 13,137,620,293.70/125,134.92
  6. Step 6: Final answer
    x = 104,987.64

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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.