Home / 129,606.12-194,409.20-31,110.12

Finding the Fourth Proportional to 129,606.12, 194,409.20 and 31,110.12

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Solution

The fourth proportional to 129,606.12, 194,409.20 and 31,110.12 is: 46,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,606.12 : 194,409.20 = 31,110.12 : x
  2. Step 2: Convert to fraction form
    129,606.12/194,409.20 = 31,110.12/x
  3. Step 3: Cross multiply
    129,606.12x = 194,409.20 × 31,110.12
  4. Step 4: Simplify right side
    129,606.12x = 6,048,093,541.10
  5. Step 5: Solve for x
    x = 6,048,093,541.10/129,606.12
  6. Step 6: Final answer
    x = 46,665.18

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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.