Home / 115,205.47-158,992.77-64,234.72

Finding the Fourth Proportional to 115,205.47, 158,992.77 and 64,234.72

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Solution

The fourth proportional to 115,205.47, 158,992.77 and 64,234.72 is: 88,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.47 : 158,992.77 = 64,234.72 : x
  2. Step 2: Convert to fraction form
    115,205.47/158,992.77 = 64,234.72/x
  3. Step 3: Cross multiply
    115,205.47x = 158,992.77 × 64,234.72
  4. Step 4: Simplify right side
    115,205.47x = 10,212,856,062.97
  5. Step 5: Solve for x
    x = 10,212,856,062.97/115,205.47
  6. Step 6: Final answer
    x = 88,649.06

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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.