Home / 117,809.01-162,576.48-66,805.40

Finding the Fourth Proportional to 117,809.01, 162,576.48 and 66,805.40

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Solution

The fourth proportional to 117,809.01, 162,576.48 and 66,805.40 is: 92,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,809.01 : 162,576.48 = 66,805.40 : x
  2. Step 2: Convert to fraction form
    117,809.01/162,576.48 = 66,805.40/x
  3. Step 3: Cross multiply
    117,809.01x = 162,576.48 × 66,805.40
  4. Step 4: Simplify right side
    117,809.01x = 10,860,985,964.11
  5. Step 5: Solve for x
    x = 10,860,985,964.11/117,809.01
  6. Step 6: Final answer
    x = 92,191.47

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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.