Home / 117,554.07-162,335.28-81,841.71

Finding the Fourth Proportional to 117,554.07, 162,335.28 and 81,841.71

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Solution

The fourth proportional to 117,554.07, 162,335.28 and 81,841.71 is: 113,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,554.07 : 162,335.28 = 81,841.71 : x
  2. Step 2: Convert to fraction form
    117,554.07/162,335.28 = 81,841.71/x
  3. Step 3: Cross multiply
    117,554.07x = 162,335.28 × 81,841.71
  4. Step 4: Simplify right side
    117,554.07x = 13,285,796,096.85
  5. Step 5: Solve for x
    x = 13,285,796,096.85/117,554.07
  6. Step 6: Final answer
    x = 113,018.60

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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.