Home / 153,132.22-211,339.29-87,727.25

Finding the Fourth Proportional to 153,132.22, 211,339.29 and 87,727.25

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Solution

The fourth proportional to 153,132.22, 211,339.29 and 87,727.25 is: 121,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,132.22 : 211,339.29 = 87,727.25 : x
  2. Step 2: Convert to fraction form
    153,132.22/211,339.29 = 87,727.25/x
  3. Step 3: Cross multiply
    153,132.22x = 211,339.29 × 87,727.25
  4. Step 4: Simplify right side
    153,132.22x = 18,540,215,585.98
  5. Step 5: Solve for x
    x = 18,540,215,585.98/153,132.22
  6. Step 6: Final answer
    x = 121,073.25

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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.