Home / 140,052.12-193,288.26-79,631.81

Finding the Fourth Proportional to 140,052.12, 193,288.26 and 79,631.81

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Solution

The fourth proportional to 140,052.12, 193,288.26 and 79,631.81 is: 109,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,052.12 : 193,288.26 = 79,631.81 : x
  2. Step 2: Convert to fraction form
    140,052.12/193,288.26 = 79,631.81/x
  3. Step 3: Cross multiply
    140,052.12x = 193,288.26 × 79,631.81
  4. Step 4: Simplify right side
    140,052.12x = 15,391,893,995.55
  5. Step 5: Solve for x
    x = 15,391,893,995.55/140,052.12
  6. Step 6: Final answer
    x = 109,901.19

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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.