Home / 140,788.26-194,292.64-77,126.04

Finding the Fourth Proportional to 140,788.26, 194,292.64 and 77,126.04

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Solution

The fourth proportional to 140,788.26, 194,292.64 and 77,126.04 is: 106,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,788.26 : 194,292.64 = 77,126.04 : x
  2. Step 2: Convert to fraction form
    140,788.26/194,292.64 = 77,126.04/x
  3. Step 3: Cross multiply
    140,788.26x = 194,292.64 × 77,126.04
  4. Step 4: Simplify right side
    140,788.26x = 14,985,021,924.35
  5. Step 5: Solve for x
    x = 14,985,021,924.35/140,788.26
  6. Step 6: Final answer
    x = 106,436.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.