Home / 205,168.05-283,179.14-120,312.45

Finding the Fourth Proportional to 205,168.05, 283,179.14 and 120,312.45

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Solution

The fourth proportional to 205,168.05, 283,179.14 and 120,312.45 is: 166,058.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,168.05 : 283,179.14 = 120,312.45 : x
  2. Step 2: Convert to fraction form
    205,168.05/283,179.14 = 120,312.45/x
  3. Step 3: Cross multiply
    205,168.05x = 283,179.14 × 120,312.45
  4. Step 4: Simplify right side
    205,168.05x = 34,069,976,122.29
  5. Step 5: Solve for x
    x = 34,069,976,122.29/205,168.05
  6. Step 6: Final answer
    x = 166,058.88

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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.