Home / 125,228.70-172,815.21-67,869.69

Finding the Fourth Proportional to 125,228.70, 172,815.21 and 67,869.69

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Solution

The fourth proportional to 125,228.70, 172,815.21 and 67,869.69 is: 93,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,228.70 : 172,815.21 = 67,869.69 : x
  2. Step 2: Convert to fraction form
    125,228.70/172,815.21 = 67,869.69/x
  3. Step 3: Cross multiply
    125,228.70x = 172,815.21 × 67,869.69
  4. Step 4: Simplify right side
    125,228.70x = 11,728,914,729.98
  5. Step 5: Solve for x
    x = 11,728,914,729.98/125,228.70
  6. Step 6: Final answer
    x = 93,659.96

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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.