Home / 140,399.02-193,750.80-76,736.86

Finding the Fourth Proportional to 140,399.02, 193,750.80 and 76,736.86

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Solution

The fourth proportional to 140,399.02, 193,750.80 and 76,736.86 is: 105,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,399.02 : 193,750.80 = 76,736.86 : x
  2. Step 2: Convert to fraction form
    140,399.02/193,750.80 = 76,736.86/x
  3. Step 3: Cross multiply
    140,399.02x = 193,750.80 × 76,736.86
  4. Step 4: Simplify right side
    140,399.02x = 14,867,828,014.49
  5. Step 5: Solve for x
    x = 14,867,828,014.49/140,399.02
  6. Step 6: Final answer
    x = 105,896.95

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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.