Home / 99,556.39-137,386.23-54,234.92

Finding the Fourth Proportional to 99,556.39, 137,386.23 and 54,234.92

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Solution

The fourth proportional to 99,556.39, 137,386.23 and 54,234.92 is: 74,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,556.39 : 137,386.23 = 54,234.92 : x
  2. Step 2: Convert to fraction form
    99,556.39/137,386.23 = 54,234.92/x
  3. Step 3: Cross multiply
    99,556.39x = 137,386.23 × 54,234.92
  4. Step 4: Simplify right side
    99,556.39x = 7,451,130,865.51
  5. Step 5: Solve for x
    x = 7,451,130,865.51/99,556.39
  6. Step 6: Final answer
    x = 74,843.32

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1.5x scale

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.