Home / 129,647.75-194,471.63-31,151.75

Finding the Fourth Proportional to 129,647.75, 194,471.63 and 31,151.75

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Solution

The fourth proportional to 129,647.75, 194,471.63 and 31,151.75 is: 46,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,647.75 : 194,471.63 = 31,151.75 : x
  2. Step 2: Convert to fraction form
    129,647.75/194,471.63 = 31,151.75/x
  3. Step 3: Cross multiply
    129,647.75x = 194,471.63 × 31,151.75
  4. Step 4: Simplify right side
    129,647.75x = 6,058,131,444.09
  5. Step 5: Solve for x
    x = 6,058,131,444.09/129,647.75
  6. Step 6: Final answer
    x = 46,727.63

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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.