Home / 156,850.47-216,455.63-85,231.69

Finding the Fourth Proportional to 156,850.47, 216,455.63 and 85,231.69

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Solution

The fourth proportional to 156,850.47, 216,455.63 and 85,231.69 is: 117,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,850.47 : 216,455.63 = 85,231.69 : x
  2. Step 2: Convert to fraction form
    156,850.47/216,455.63 = 85,231.69/x
  3. Step 3: Cross multiply
    156,850.47x = 216,455.63 × 85,231.69
  4. Step 4: Simplify right side
    156,850.47x = 18,448,878,187.62
  5. Step 5: Solve for x
    x = 18,448,878,187.62/156,850.47
  6. Step 6: Final answer
    x = 117,620.80

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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.