Home / 140,022.72-193,232.32-76,360

Finding the Fourth Proportional to 140,022.72, 193,232.32 and 76,360

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Solution

The fourth proportional to 140,022.72, 193,232.32 and 76,360 is: 105,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,022.72 : 193,232.32 = 76,360 : x
  2. Step 2: Convert to fraction form
    140,022.72/193,232.32 = 76,360/x
  3. Step 3: Cross multiply
    140,022.72x = 193,232.32 × 76,360
  4. Step 4: Simplify right side
    140,022.72x = 14,755,219,955.20
  5. Step 5: Solve for x
    x = 14,755,219,955.20/140,022.72
  6. Step 6: Final answer
    x = 105,377.33

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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.