Home / 179,109.12-247,336.56-115,556.16

Finding the Fourth Proportional to 179,109.12, 247,336.56 and 115,556.16

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Solution

The fourth proportional to 179,109.12, 247,336.56 and 115,556.16 is: 159,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,109.12 : 247,336.56 = 115,556.16 : x
  2. Step 2: Convert to fraction form
    179,109.12/247,336.56 = 115,556.16/x
  3. Step 3: Cross multiply
    179,109.12x = 247,336.56 × 115,556.16
  4. Step 4: Simplify right side
    179,109.12x = 28,581,263,101.21
  5. Step 5: Solve for x
    x = 28,581,263,101.21/179,109.12
  6. Step 6: Final answer
    x = 159,574.58

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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.