Home / 102,105.43-140,807.73-61,263.20

Finding the Fourth Proportional to 102,105.43, 140,807.73 and 61,263.20

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Solution

The fourth proportional to 102,105.43, 140,807.73 and 61,263.20 is: 84,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,105.43 : 140,807.73 = 61,263.20 : x
  2. Step 2: Convert to fraction form
    102,105.43/140,807.73 = 61,263.20/x
  3. Step 3: Cross multiply
    102,105.43x = 140,807.73 × 61,263.20
  4. Step 4: Simplify right side
    102,105.43x = 8,626,332,124.54
  5. Step 5: Solve for x
    x = 8,626,332,124.54/102,105.43
  6. Step 6: Final answer
    x = 84,484.56

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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.