Home / 117,764.78-162,511.92-66,782.16

Finding the Fourth Proportional to 117,764.78, 162,511.92 and 66,782.16

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Solution

The fourth proportional to 117,764.78, 162,511.92 and 66,782.16 is: 92,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,764.78 : 162,511.92 = 66,782.16 : x
  2. Step 2: Convert to fraction form
    117,764.78/162,511.92 = 66,782.16/x
  3. Step 3: Cross multiply
    117,764.78x = 162,511.92 × 66,782.16
  4. Step 4: Simplify right side
    117,764.78x = 10,852,897,043.35
  5. Step 5: Solve for x
    x = 10,852,897,043.35/117,764.78
  6. Step 6: Final answer
    x = 92,157.41

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1.5x scale

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.