Home / 111,685.60-154,124.34-61,383.52

Finding the Fourth Proportional to 111,685.60, 154,124.34 and 61,383.52

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Solution

The fourth proportional to 111,685.60, 154,124.34 and 61,383.52 is: 84,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,685.60 : 154,124.34 = 61,383.52 : x
  2. Step 2: Convert to fraction form
    111,685.60/154,124.34 = 61,383.52/x
  3. Step 3: Cross multiply
    111,685.60x = 154,124.34 × 61,383.52
  4. Step 4: Simplify right side
    111,685.60x = 9,460,694,506.88
  5. Step 5: Solve for x
    x = 9,460,694,506.88/111,685.60
  6. Step 6: Final answer
    x = 84,708.27

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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.