Home / 156,697.65-216,244.31-85,078.26

Finding the Fourth Proportional to 156,697.65, 216,244.31 and 85,078.26

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Solution

The fourth proportional to 156,697.65, 216,244.31 and 85,078.26 is: 117,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,697.65 : 216,244.31 = 85,078.26 : x
  2. Step 2: Convert to fraction form
    156,697.65/216,244.31 = 85,078.26/x
  3. Step 3: Cross multiply
    156,697.65x = 216,244.31 × 85,078.26
  4. Step 4: Simplify right side
    156,697.65x = 18,397,689,629.70
  5. Step 5: Solve for x
    x = 18,397,689,629.70/156,697.65
  6. Step 6: Final answer
    x = 117,408.84

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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.