Home / 140,764.22-194,254.70-77,103.08

Finding the Fourth Proportional to 140,764.22, 194,254.70 and 77,103.08

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Solution

The fourth proportional to 140,764.22, 194,254.70 and 77,103.08 is: 106,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,764.22 : 194,254.70 = 77,103.08 : x
  2. Step 2: Convert to fraction form
    140,764.22/194,254.70 = 77,103.08/x
  3. Step 3: Cross multiply
    140,764.22x = 194,254.70 × 77,103.08
  4. Step 4: Simplify right side
    140,764.22x = 14,977,635,674.48
  5. Step 5: Solve for x
    x = 14,977,635,674.48/140,764.22
  6. Step 6: Final answer
    x = 106,402.29

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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.