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Finding the Fourth Proportional to 125,878.67, 188,818.50 and 51,000.23

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Solution

The fourth proportional to 125,878.67, 188,818.50 and 51,000.23 is: 76,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,878.67 : 188,818.50 = 51,000.23 : x
  2. Step 2: Convert to fraction form
    125,878.67/188,818.50 = 51,000.23/x
  3. Step 3: Cross multiply
    125,878.67x = 188,818.50 × 51,000.23
  4. Step 4: Simplify right side
    125,878.67x = 9,629,786,928.26
  5. Step 5: Solve for x
    x = 9,629,786,928.26/125,878.67
  6. Step 6: Final answer
    x = 76,500.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.