Home / 156,905.08-216,530.46-85,285.27

Finding the Fourth Proportional to 156,905.08, 216,530.46 and 85,285.27

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Solution

The fourth proportional to 156,905.08, 216,530.46 and 85,285.27 is: 117,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,905.08 : 216,530.46 = 85,285.27 : x
  2. Step 2: Convert to fraction form
    156,905.08/216,530.46 = 85,285.27/x
  3. Step 3: Cross multiply
    156,905.08x = 216,530.46 × 85,285.27
  4. Step 4: Simplify right side
    156,905.08x = 18,466,858,744.32
  5. Step 5: Solve for x
    x = 18,466,858,744.32/156,905.08
  6. Step 6: Final answer
    x = 117,694.46

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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.