Home / 129,093.50-193,673.11-75,830.52

Finding the Fourth Proportional to 129,093.50, 193,673.11 and 75,830.52

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Solution

The fourth proportional to 129,093.50, 193,673.11 and 75,830.52 is: 113,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,093.50 : 193,673.11 = 75,830.52 : x
  2. Step 2: Convert to fraction form
    129,093.50/193,673.11 = 75,830.52/x
  3. Step 3: Cross multiply
    129,093.50x = 193,673.11 × 75,830.52
  4. Step 4: Simplify right side
    129,093.50x = 14,686,333,024.07
  5. Step 5: Solve for x
    x = 14,686,333,024.07/129,093.50
  6. Step 6: Final answer
    x = 113,765.08

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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.