Home / 107,219.20-160,828.80-67,561.60

Finding the Fourth Proportional to 107,219.20, 160,828.80 and 67,561.60

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Solution

The fourth proportional to 107,219.20, 160,828.80 and 67,561.60 is: 101,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,219.20 : 160,828.80 = 67,561.60 : x
  2. Step 2: Convert to fraction form
    107,219.20/160,828.80 = 67,561.60/x
  3. Step 3: Cross multiply
    107,219.20x = 160,828.80 × 67,561.60
  4. Step 4: Simplify right side
    107,219.20x = 10,865,851,054.08
  5. Step 5: Solve for x
    x = 10,865,851,054.08/107,219.20
  6. Step 6: Final answer
    x = 101,342.40

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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.