Home / 205,518.39-283,615.28-120,635.45

Finding the Fourth Proportional to 205,518.39, 283,615.28 and 120,635.45

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Solution

The fourth proportional to 205,518.39, 283,615.28 and 120,635.45 is: 166,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,518.39 : 283,615.28 = 120,635.45 : x
  2. Step 2: Convert to fraction form
    205,518.39/283,615.28 = 120,635.45/x
  3. Step 3: Cross multiply
    205,518.39x = 283,615.28 × 120,635.45
  4. Step 4: Simplify right side
    205,518.39x = 34,214,058,395.08
  5. Step 5: Solve for x
    x = 34,214,058,395.08/205,518.39
  6. Step 6: Final answer
    x = 166,476.87

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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.