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Finding the Fourth Proportional to 125,216.08, 172,797.85 and 67,856.98

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Solution

The fourth proportional to 125,216.08, 172,797.85 and 67,856.98 is: 93,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,216.08 : 172,797.85 = 67,856.98 : x
  2. Step 2: Convert to fraction form
    125,216.08/172,797.85 = 67,856.98/x
  3. Step 3: Cross multiply
    125,216.08x = 172,797.85 × 67,856.98
  4. Step 4: Simplify right side
    125,216.08x = 11,725,540,251.49
  5. Step 5: Solve for x
    x = 11,725,540,251.49/125,216.08
  6. Step 6: Final answer
    x = 93,642.45

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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.