Home / 140,748.48-194,236.11-77,085.72

Finding the Fourth Proportional to 140,748.48, 194,236.11 and 77,085.72

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Solution

The fourth proportional to 140,748.48, 194,236.11 and 77,085.72 is: 106,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,748.48 : 194,236.11 = 77,085.72 : x
  2. Step 2: Convert to fraction form
    140,748.48/194,236.11 = 77,085.72/x
  3. Step 3: Cross multiply
    140,748.48x = 194,236.11 × 77,085.72
  4. Step 4: Simplify right side
    140,748.48x = 14,972,830,389.35
  5. Step 5: Solve for x
    x = 14,972,830,389.35/140,748.48
  6. Step 6: Final answer
    x = 106,380.05

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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.