Home / 117,763.90-162,521.04-66,778.72

Finding the Fourth Proportional to 117,763.90, 162,521.04 and 66,778.72

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Solution

The fourth proportional to 117,763.90, 162,521.04 and 66,778.72 is: 92,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,763.90 : 162,521.04 = 66,778.72 : x
  2. Step 2: Convert to fraction form
    117,763.90/162,521.04 = 66,778.72/x
  3. Step 3: Cross multiply
    117,763.90x = 162,521.04 × 66,778.72
  4. Step 4: Simplify right side
    117,763.90x = 10,852,947,024.27
  5. Step 5: Solve for x
    x = 10,852,947,024.27/117,763.90
  6. Step 6: Final answer
    x = 92,158.52

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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.