Home / 139,226.42-192,132.65-75,564.22

Finding the Fourth Proportional to 139,226.42, 192,132.65 and 75,564.22

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Solution

The fourth proportional to 139,226.42, 192,132.65 and 75,564.22 is: 104,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.42 : 192,132.65 = 75,564.22 : x
  2. Step 2: Convert to fraction form
    139,226.42/192,132.65 = 75,564.22/x
  3. Step 3: Cross multiply
    139,226.42x = 192,132.65 × 75,564.22
  4. Step 4: Simplify right side
    139,226.42x = 14,518,353,833.78
  5. Step 5: Solve for x
    x = 14,518,353,833.78/139,226.42
  6. Step 6: Final answer
    x = 104,278.73

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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.