Home / 117,907.78-162,714.81-64,194.34

Finding the Fourth Proportional to 117,907.78, 162,714.81 and 64,194.34

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Solution

The fourth proportional to 117,907.78, 162,714.81 and 64,194.34 is: 88,589.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,907.78 : 162,714.81 = 64,194.34 : x
  2. Step 2: Convert to fraction form
    117,907.78/162,714.81 = 64,194.34/x
  3. Step 3: Cross multiply
    117,907.78x = 162,714.81 × 64,194.34
  4. Step 4: Simplify right side
    117,907.78x = 10,445,369,836.18
  5. Step 5: Solve for x
    x = 10,445,369,836.18/117,907.78
  6. Step 6: Final answer
    x = 88,589.32

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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.