Home / 156,928.62-216,558.93-85,310.45

Finding the Fourth Proportional to 156,928.62, 216,558.93 and 85,310.45

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Solution

The fourth proportional to 156,928.62, 216,558.93 and 85,310.45 is: 117,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,928.62 : 216,558.93 = 85,310.45 : x
  2. Step 2: Convert to fraction form
    156,928.62/216,558.93 = 85,310.45/x
  3. Step 3: Cross multiply
    156,928.62x = 216,558.93 × 85,310.45
  4. Step 4: Simplify right side
    156,928.62x = 18,474,738,687.02
  5. Step 5: Solve for x
    x = 18,474,738,687.02/156,928.62
  6. Step 6: Final answer
    x = 117,727.02

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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.