Home / 156,771.48-216,346.24-85,152.90

Finding the Fourth Proportional to 156,771.48, 216,346.24 and 85,152.90

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Solution

The fourth proportional to 156,771.48, 216,346.24 and 85,152.90 is: 117,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,771.48 : 216,346.24 = 85,152.90 : x
  2. Step 2: Convert to fraction form
    156,771.48/216,346.24 = 85,152.90/x
  3. Step 3: Cross multiply
    156,771.48x = 216,346.24 × 85,152.90
  4. Step 4: Simplify right side
    156,771.48x = 18,422,509,740.10
  5. Step 5: Solve for x
    x = 18,422,509,740.10/156,771.48
  6. Step 6: Final answer
    x = 117,511.87

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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.