Home / 112,020.60-154,585.62-61,718.52

Finding the Fourth Proportional to 112,020.60, 154,585.62 and 61,718.52

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Solution

The fourth proportional to 112,020.60, 154,585.62 and 61,718.52 is: 85,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.60 : 154,585.62 = 61,718.52 : x
  2. Step 2: Convert to fraction form
    112,020.60/154,585.62 = 61,718.52/x
  3. Step 3: Cross multiply
    112,020.60x = 154,585.62 × 61,718.52
  4. Step 4: Simplify right side
    112,020.60x = 9,540,795,679.68
  5. Step 5: Solve for x
    x = 9,540,795,679.68/112,020.60
  6. Step 6: Final answer
    x = 85,170.01

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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.