Home / 156,986.40-235,479.60-109,747.20

Finding the Fourth Proportional to 156,986.40, 235,479.60 and 109,747.20

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Solution

The fourth proportional to 156,986.40, 235,479.60 and 109,747.20 is: 164,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.40 : 235,479.60 = 109,747.20 : x
  2. Step 2: Convert to fraction form
    156,986.40/235,479.60 = 109,747.20/x
  3. Step 3: Cross multiply
    156,986.40x = 235,479.60 × 109,747.20
  4. Step 4: Simplify right side
    156,986.40x = 25,843,226,757.12
  5. Step 5: Solve for x
    x = 25,843,226,757.12/156,986.40
  6. Step 6: Final answer
    x = 164,620.80

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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.