Home / 140,121.07-193,371.74-76,462.36

Finding the Fourth Proportional to 140,121.07, 193,371.74 and 76,462.36

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Solution

The fourth proportional to 140,121.07, 193,371.74 and 76,462.36 is: 105,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121.07 : 193,371.74 = 76,462.36 : x
  2. Step 2: Convert to fraction form
    140,121.07/193,371.74 = 76,462.36/x
  3. Step 3: Cross multiply
    140,121.07x = 193,371.74 × 76,462.36
  4. Step 4: Simplify right side
    140,121.07x = 14,785,659,597.71
  5. Step 5: Solve for x
    x = 14,785,659,597.71/140,121.07
  6. Step 6: Final answer
    x = 105,520.60

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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.