Home / 156,799.37-216,383.31-85,179.38

Finding the Fourth Proportional to 156,799.37, 216,383.31 and 85,179.38

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Solution

The fourth proportional to 156,799.37, 216,383.31 and 85,179.38 is: 117,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.37 : 216,383.31 = 85,179.38 : x
  2. Step 2: Convert to fraction form
    156,799.37/216,383.31 = 85,179.38/x
  3. Step 3: Cross multiply
    156,799.37x = 216,383.31 × 85,179.38
  4. Step 4: Simplify right side
    156,799.37x = 18,431,395,106.23
  5. Step 5: Solve for x
    x = 18,431,395,106.23/156,799.37
  6. Step 6: Final answer
    x = 117,547.64

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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.