Home / 115,488.96-158,217.21-111,171.45

Finding the Fourth Proportional to 115,488.96, 158,217.21 and 111,171.45

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Solution

The fourth proportional to 115,488.96, 158,217.21 and 111,171.45 is: 152,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,488.96 : 158,217.21 = 111,171.45 : x
  2. Step 2: Convert to fraction form
    115,488.96/158,217.21 = 111,171.45/x
  3. Step 3: Cross multiply
    115,488.96x = 158,217.21 × 111,171.45
  4. Step 4: Simplify right side
    115,488.96x = 17,589,236,650.65
  5. Step 5: Solve for x
    x = 17,589,236,650.65/115,488.96
  6. Step 6: Final answer
    x = 152,302.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.