Home / 102,133.16-140,947.77-61,824.12

Finding the Fourth Proportional to 102,133.16, 140,947.77 and 61,824.12

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Solution

The fourth proportional to 102,133.16, 140,947.77 and 61,824.12 is: 85,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,133.16 : 140,947.77 = 61,824.12 : x
  2. Step 2: Convert to fraction form
    102,133.16/140,947.77 = 61,824.12/x
  3. Step 3: Cross multiply
    102,133.16x = 140,947.77 × 61,824.12
  4. Step 4: Simplify right side
    102,133.16x = 8,713,972,078.05
  5. Step 5: Solve for x
    x = 8,713,972,078.05/102,133.16
  6. Step 6: Final answer
    x = 85,319.71

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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.