Home / 129,632.12-194,448.22-31,136.12

Finding the Fourth Proportional to 129,632.12, 194,448.22 and 31,136.12

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Solution

The fourth proportional to 129,632.12, 194,448.22 and 31,136.12 is: 46,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,632.12 : 194,448.22 = 31,136.12 : x
  2. Step 2: Convert to fraction form
    129,632.12/194,448.22 = 31,136.12/x
  3. Step 3: Cross multiply
    129,632.12x = 194,448.22 × 31,136.12
  4. Step 4: Simplify right side
    129,632.12x = 6,054,363,111.71
  5. Step 5: Solve for x
    x = 6,054,363,111.71/129,632.12
  6. Step 6: Final answer
    x = 46,704.19

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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.