Home / 156,685.77-216,226.73-85,064.25

Finding the Fourth Proportional to 156,685.77, 216,226.73 and 85,064.25

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Solution

The fourth proportional to 156,685.77, 216,226.73 and 85,064.25 is: 117,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685.77 : 216,226.73 = 85,064.25 : x
  2. Step 2: Convert to fraction form
    156,685.77/216,226.73 = 85,064.25/x
  3. Step 3: Cross multiply
    156,685.77x = 216,226.73 × 85,064.25
  4. Step 4: Simplify right side
    156,685.77x = 18,393,165,321.92
  5. Step 5: Solve for x
    x = 18,393,165,321.92/156,685.77
  6. Step 6: Final answer
    x = 117,388.87

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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.