Home / 142,613.87-196,806.46-77,202.52

Finding the Fourth Proportional to 142,613.87, 196,806.46 and 77,202.52

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Solution

The fourth proportional to 142,613.87, 196,806.46 and 77,202.52 is: 106,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,613.87 : 196,806.46 = 77,202.52 : x
  2. Step 2: Convert to fraction form
    142,613.87/196,806.46 = 77,202.52/x
  3. Step 3: Cross multiply
    142,613.87x = 196,806.46 × 77,202.52
  4. Step 4: Simplify right side
    142,613.87x = 15,193,954,124.01
  5. Step 5: Solve for x
    x = 15,193,954,124.01/142,613.87
  6. Step 6: Final answer
    x = 106,539.11

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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.