Home / 140,777.52-194,273.02-77,117.60

Finding the Fourth Proportional to 140,777.52, 194,273.02 and 77,117.60

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Solution

The fourth proportional to 140,777.52, 194,273.02 and 77,117.60 is: 106,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,777.52 : 194,273.02 = 77,117.60 : x
  2. Step 2: Convert to fraction form
    140,777.52/194,273.02 = 77,117.60/x
  3. Step 3: Cross multiply
    140,777.52x = 194,273.02 × 77,117.60
  4. Step 4: Simplify right side
    140,777.52x = 14,981,869,047.15
  5. Step 5: Solve for x
    x = 14,981,869,047.15/140,777.52
  6. Step 6: Final answer
    x = 106,422.31

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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.