Home / 129,216.72-193,809.69-34,454.01

Finding the Fourth Proportional to 129,216.72, 193,809.69 and 34,454.01

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Solution

The fourth proportional to 129,216.72, 193,809.69 and 34,454.01 is: 51,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,216.72 : 193,809.69 = 34,454.01 : x
  2. Step 2: Convert to fraction form
    129,216.72/193,809.69 = 34,454.01/x
  3. Step 3: Cross multiply
    129,216.72x = 193,809.69 × 34,454.01
  4. Step 4: Simplify right side
    129,216.72x = 6,677,520,537.06
  5. Step 5: Solve for x
    x = 6,677,520,537.06/129,216.72
  6. Step 6: Final answer
    x = 51,676.91

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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.