Home / 139,331.26-192,278.55-75,670.30

Finding the Fourth Proportional to 139,331.26, 192,278.55 and 75,670.30

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Solution

The fourth proportional to 139,331.26, 192,278.55 and 75,670.30 is: 104,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,331.26 : 192,278.55 = 75,670.30 : x
  2. Step 2: Convert to fraction form
    139,331.26/192,278.55 = 75,670.30/x
  3. Step 3: Cross multiply
    139,331.26x = 192,278.55 × 75,670.30
  4. Step 4: Simplify right side
    139,331.26x = 14,549,775,562.07
  5. Step 5: Solve for x
    x = 14,549,775,562.07/139,331.26
  6. Step 6: Final answer
    x = 104,425.78

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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.