Home / 129,628.13-194,442.21-31,132.13

Finding the Fourth Proportional to 129,628.13, 194,442.21 and 31,132.13

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Solution

The fourth proportional to 129,628.13, 194,442.21 and 31,132.13 is: 46,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,628.13 : 194,442.21 = 31,132.13 : x
  2. Step 2: Convert to fraction form
    129,628.13/194,442.21 = 31,132.13/x
  3. Step 3: Cross multiply
    129,628.13x = 194,442.21 × 31,132.13
  4. Step 4: Simplify right side
    129,628.13x = 6,053,399,187.00
  5. Step 5: Solve for x
    x = 6,053,399,187.00/129,628.13
  6. Step 6: Final answer
    x = 46,698.19

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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.