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Finding the Fourth Proportional to 125,794.40, 188,837.40 and 75,930.80

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Solution

The fourth proportional to 125,794.40, 188,837.40 and 75,930.80 is: 113,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,794.40 : 188,837.40 = 75,930.80 : x
  2. Step 2: Convert to fraction form
    125,794.40/188,837.40 = 75,930.80/x
  3. Step 3: Cross multiply
    125,794.40x = 188,837.40 × 75,930.80
  4. Step 4: Simplify right side
    125,794.40x = 14,338,574,851.92
  5. Step 5: Solve for x
    x = 14,338,574,851.92/125,794.40
  6. Step 6: Final answer
    x = 113,984.21

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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.