Home / 156,660.48-216,185.52-85,038.96

Finding the Fourth Proportional to 156,660.48, 216,185.52 and 85,038.96

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Solution

The fourth proportional to 156,660.48, 216,185.52 and 85,038.96 is: 117,350.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,660.48 : 216,185.52 = 85,038.96 : x
  2. Step 2: Convert to fraction form
    156,660.48/216,185.52 = 85,038.96/x
  3. Step 3: Cross multiply
    156,660.48x = 216,185.52 × 85,038.96
  4. Step 4: Simplify right side
    156,660.48x = 18,384,191,787.86
  5. Step 5: Solve for x
    x = 18,384,191,787.86/156,660.48
  6. Step 6: Final answer
    x = 117,350.54

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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.