Home / 106,565.20-159,847.80-66,907.60

Finding the Fourth Proportional to 106,565.20, 159,847.80 and 66,907.60

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Solution

The fourth proportional to 106,565.20, 159,847.80 and 66,907.60 is: 100,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,565.20 : 159,847.80 = 66,907.60 : x
  2. Step 2: Convert to fraction form
    106,565.20/159,847.80 = 66,907.60/x
  3. Step 3: Cross multiply
    106,565.20x = 159,847.80 × 66,907.60
  4. Step 4: Simplify right side
    106,565.20x = 10,695,032,663.28
  5. Step 5: Solve for x
    x = 10,695,032,663.28/106,565.20
  6. Step 6: Final answer
    x = 100,361.40

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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.