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Finding the Fourth Proportional to 106,616.41, 159,577.41 and 78,525.40

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Solution

The fourth proportional to 106,616.41, 159,577.41 and 78,525.40 is: 117,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,616.41 : 159,577.41 = 78,525.40 : x
  2. Step 2: Convert to fraction form
    106,616.41/159,577.41 = 78,525.40/x
  3. Step 3: Cross multiply
    106,616.41x = 159,577.41 × 78,525.40
  4. Step 4: Simplify right side
    106,616.41x = 12,530,879,951.21
  5. Step 5: Solve for x
    x = 12,530,879,951.21/106,616.41
  6. Step 6: Final answer
    x = 117,532.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.