Home / 140,316.37-193,629.31-76,641.87

Finding the Fourth Proportional to 140,316.37, 193,629.31 and 76,641.87

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Solution

The fourth proportional to 140,316.37, 193,629.31 and 76,641.87 is: 105,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,316.37 : 193,629.31 = 76,641.87 : x
  2. Step 2: Convert to fraction form
    140,316.37/193,629.31 = 76,641.87/x
  3. Step 3: Cross multiply
    140,316.37x = 193,629.31 × 76,641.87
  4. Step 4: Simplify right side
    140,316.37x = 14,840,112,405.21
  5. Step 5: Solve for x
    x = 14,840,112,405.21/140,316.37
  6. Step 6: Final answer
    x = 105,761.80

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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.