Home / 140,485.77-193,871.39-79,232.76

Finding the Fourth Proportional to 140,485.77, 193,871.39 and 79,232.76

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Solution

The fourth proportional to 140,485.77, 193,871.39 and 79,232.76 is: 109,341.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,485.77 : 193,871.39 = 79,232.76 : x
  2. Step 2: Convert to fraction form
    140,485.77/193,871.39 = 79,232.76/x
  3. Step 3: Cross multiply
    140,485.77x = 193,871.39 × 79,232.76
  4. Step 4: Simplify right side
    140,485.77x = 15,360,964,918.57
  5. Step 5: Solve for x
    x = 15,360,964,918.57/140,485.77
  6. Step 6: Final answer
    x = 109,341.79

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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.