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Finding the Fourth Proportional to 125,958.86, 188,910.09 and 75,970.10

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Solution

The fourth proportional to 125,958.86, 188,910.09 and 75,970.10 is: 113,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,958.86 : 188,910.09 = 75,970.10 : x
  2. Step 2: Convert to fraction form
    125,958.86/188,910.09 = 75,970.10/x
  3. Step 3: Cross multiply
    125,958.86x = 188,910.09 × 75,970.10
  4. Step 4: Simplify right side
    125,958.86x = 14,351,518,428.31
  5. Step 5: Solve for x
    x = 14,351,518,428.31/125,958.86
  6. Step 6: Final answer
    x = 113,938.14

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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.