Home / 129,707.10-194,561.37-36,213.66

Finding the Fourth Proportional to 129,707.10, 194,561.37 and 36,213.66

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Solution

The fourth proportional to 129,707.10, 194,561.37 and 36,213.66 is: 54,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,707.10 : 194,561.37 = 36,213.66 : x
  2. Step 2: Convert to fraction form
    129,707.10/194,561.37 = 36,213.66/x
  3. Step 3: Cross multiply
    129,707.10x = 194,561.37 × 36,213.66
  4. Step 4: Simplify right side
    129,707.10x = 7,045,779,302.31
  5. Step 5: Solve for x
    x = 7,045,779,302.31/129,707.10
  6. Step 6: Final answer
    x = 54,320.69

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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.