Home / 117,254.40-161,884.44-90,345.84

Finding the Fourth Proportional to 117,254.40, 161,884.44 and 90,345.84

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Solution

The fourth proportional to 117,254.40, 161,884.44 and 90,345.84 is: 124,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,254.40 : 161,884.44 = 90,345.84 : x
  2. Step 2: Convert to fraction form
    117,254.40/161,884.44 = 90,345.84/x
  3. Step 3: Cross multiply
    117,254.40x = 161,884.44 × 90,345.84
  4. Step 4: Simplify right side
    117,254.40x = 14,625,585,714.73
  5. Step 5: Solve for x
    x = 14,625,585,714.73/117,254.40
  6. Step 6: Final answer
    x = 124,733.79

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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.