Home / 142,608.45-196,737.87-85,988.37

Finding the Fourth Proportional to 142,608.45, 196,737.87 and 85,988.37

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Solution

The fourth proportional to 142,608.45, 196,737.87 and 85,988.37 is: 118,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,608.45 : 196,737.87 = 85,988.37 : x
  2. Step 2: Convert to fraction form
    142,608.45/196,737.87 = 85,988.37/x
  3. Step 3: Cross multiply
    142,608.45x = 196,737.87 × 85,988.37
  4. Step 4: Simplify right side
    142,608.45x = 16,917,168,758.57
  5. Step 5: Solve for x
    x = 16,917,168,758.57/142,608.45
  6. Step 6: Final answer
    x = 118,626.69

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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.