Home / 117,744.30-162,483.75-66,761.82

Finding the Fourth Proportional to 117,744.30, 162,483.75 and 66,761.82

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Solution

The fourth proportional to 117,744.30, 162,483.75 and 66,761.82 is: 92,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,744.30 : 162,483.75 = 66,761.82 : x
  2. Step 2: Convert to fraction form
    117,744.30/162,483.75 = 66,761.82/x
  3. Step 3: Cross multiply
    117,744.30x = 162,483.75 × 66,761.82
  4. Step 4: Simplify right side
    117,744.30x = 10,847,710,870.43
  5. Step 5: Solve for x
    x = 10,847,710,870.43/117,744.30
  6. Step 6: Final answer
    x = 92,129.39

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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.