Home / 140,889.78-194,434.02-77,226.21

Finding the Fourth Proportional to 140,889.78, 194,434.02 and 77,226.21

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Solution

The fourth proportional to 140,889.78, 194,434.02 and 77,226.21 is: 106,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,889.78 : 194,434.02 = 77,226.21 : x
  2. Step 2: Convert to fraction form
    140,889.78/194,434.02 = 77,226.21/x
  3. Step 3: Cross multiply
    140,889.78x = 194,434.02 × 77,226.21
  4. Step 4: Simplify right side
    140,889.78x = 15,015,402,459.66
  5. Step 5: Solve for x
    x = 15,015,402,459.66/140,889.78
  6. Step 6: Final answer
    x = 106,575.53

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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.