Home / 142,733.40-214,100.10-83,635.80

Finding the Fourth Proportional to 142,733.40, 214,100.10 and 83,635.80

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Solution

The fourth proportional to 142,733.40, 214,100.10 and 83,635.80 is: 125,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,733.40 : 214,100.10 = 83,635.80 : x
  2. Step 2: Convert to fraction form
    142,733.40/214,100.10 = 83,635.80/x
  3. Step 3: Cross multiply
    142,733.40x = 214,100.10 × 83,635.80
  4. Step 4: Simplify right side
    142,733.40x = 17,906,433,143.58
  5. Step 5: Solve for x
    x = 17,906,433,143.58/142,733.40
  6. Step 6: Final answer
    x = 125,453.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.