Home / 140,427.75-193,790.31-76,766.01

Finding the Fourth Proportional to 140,427.75, 193,790.31 and 76,766.01

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Solution

The fourth proportional to 140,427.75, 193,790.31 and 76,766.01 is: 105,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.75 : 193,790.31 = 76,766.01 : x
  2. Step 2: Convert to fraction form
    140,427.75/193,790.31 = 76,766.01/x
  3. Step 3: Cross multiply
    140,427.75x = 193,790.31 × 76,766.01
  4. Step 4: Simplify right side
    140,427.75x = 14,876,508,875.36
  5. Step 5: Solve for x
    x = 14,876,508,875.36/140,427.75
  6. Step 6: Final answer
    x = 105,937.10

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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.