Home / 117,889.41-162,689.09-64,176.11

Finding the Fourth Proportional to 117,889.41, 162,689.09 and 64,176.11

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Solution

The fourth proportional to 117,889.41, 162,689.09 and 64,176.11 is: 88,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,889.41 : 162,689.09 = 64,176.11 : x
  2. Step 2: Convert to fraction form
    117,889.41/162,689.09 = 64,176.11/x
  3. Step 3: Cross multiply
    117,889.41x = 162,689.09 × 64,176.11
  4. Step 4: Simplify right side
    117,889.41x = 10,440,751,801.31
  5. Step 5: Solve for x
    x = 10,440,751,801.31/117,889.41
  6. Step 6: Final answer
    x = 88,563.95

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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.