Home / 142,571.39-196,735.16-85,199.29

Finding the Fourth Proportional to 142,571.39, 196,735.16 and 85,199.29

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Solution

The fourth proportional to 142,571.39, 196,735.16 and 85,199.29 is: 117,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,571.39 : 196,735.16 = 85,199.29 : x
  2. Step 2: Convert to fraction form
    142,571.39/196,735.16 = 85,199.29/x
  3. Step 3: Cross multiply
    142,571.39x = 196,735.16 × 85,199.29
  4. Step 4: Simplify right side
    142,571.39x = 16,761,695,671.20
  5. Step 5: Solve for x
    x = 16,761,695,671.20/142,571.39
  6. Step 6: Final answer
    x = 117,567.04

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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.