Home / 112,022-154,590.84-61,719.92

Finding the Fourth Proportional to 112,022, 154,590.84 and 61,719.92

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Solution

The fourth proportional to 112,022, 154,590.84 and 61,719.92 is: 85,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,022 : 154,590.84 = 61,719.92 : x
  2. Step 2: Convert to fraction form
    112,022/154,590.84 = 61,719.92/x
  3. Step 3: Cross multiply
    112,022x = 154,590.84 × 61,719.92
  4. Step 4: Simplify right side
    112,022x = 9,541,334,277.53
  5. Step 5: Solve for x
    x = 9,541,334,277.53/112,022
  6. Step 6: Final answer
    x = 85,173.75

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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.