Home / 153,175.22-211,379.91-86,107.22

Finding the Fourth Proportional to 153,175.22, 211,379.91 and 86,107.22

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Solution

The fourth proportional to 153,175.22, 211,379.91 and 86,107.22 is: 118,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,175.22 : 211,379.91 = 86,107.22 : x
  2. Step 2: Convert to fraction form
    153,175.22/211,379.91 = 86,107.22/x
  3. Step 3: Cross multiply
    153,175.22x = 211,379.91 × 86,107.22
  4. Step 4: Simplify right side
    153,175.22x = 18,201,335,357.05
  5. Step 5: Solve for x
    x = 18,201,335,357.05/153,175.22
  6. Step 6: Final answer
    x = 118,826.90

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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.