Home / 154,629.76-213,369.15-90,944.32

Finding the Fourth Proportional to 154,629.76, 213,369.15 and 90,944.32

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Solution

The fourth proportional to 154,629.76, 213,369.15 and 90,944.32 is: 125,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,629.76 : 213,369.15 = 90,944.32 : x
  2. Step 2: Convert to fraction form
    154,629.76/213,369.15 = 90,944.32/x
  3. Step 3: Cross multiply
    154,629.76x = 213,369.15 × 90,944.32
  4. Step 4: Simplify right side
    154,629.76x = 19,404,712,255.73
  5. Step 5: Solve for x
    x = 19,404,712,255.73/154,629.76
  6. Step 6: Final answer
    x = 125,491.45

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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.