Home / 205,168.12-283,179.23-120,312.52

Finding the Fourth Proportional to 205,168.12, 283,179.23 and 120,312.52

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Solution

The fourth proportional to 205,168.12, 283,179.23 and 120,312.52 is: 166,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,168.12 : 283,179.23 = 120,312.52 : x
  2. Step 2: Convert to fraction form
    205,168.12/283,179.23 = 120,312.52/x
  3. Step 3: Cross multiply
    205,168.12x = 283,179.23 × 120,312.52
  4. Step 4: Simplify right side
    205,168.12x = 34,070,006,772.96
  5. Step 5: Solve for x
    x = 34,070,006,772.96/205,168.12
  6. Step 6: Final answer
    x = 166,058.97

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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.