Home / 129,899.12-194,856.24-36,412.16

Finding the Fourth Proportional to 129,899.12, 194,856.24 and 36,412.16

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Solution

The fourth proportional to 129,899.12, 194,856.24 and 36,412.16 is: 54,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,899.12 : 194,856.24 = 36,412.16 : x
  2. Step 2: Convert to fraction form
    129,899.12/194,856.24 = 36,412.16/x
  3. Step 3: Cross multiply
    129,899.12x = 194,856.24 × 36,412.16
  4. Step 4: Simplify right side
    129,899.12x = 7,095,136,587.88
  5. Step 5: Solve for x
    x = 7,095,136,587.88/129,899.12
  6. Step 6: Final answer
    x = 54,620.36

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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.