Home / 205,811.64-283,901.10-120,911.16

Finding the Fourth Proportional to 205,811.64, 283,901.10 and 120,911.16

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Solution

The fourth proportional to 205,811.64, 283,901.10 and 120,911.16 is: 166,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,811.64 : 283,901.10 = 120,911.16 : x
  2. Step 2: Convert to fraction form
    205,811.64/283,901.10 = 120,911.16/x
  3. Step 3: Cross multiply
    205,811.64x = 283,901.10 × 120,911.16
  4. Step 4: Simplify right side
    205,811.64x = 34,326,811,326.28
  5. Step 5: Solve for x
    x = 34,326,811,326.28/205,811.64
  6. Step 6: Final answer
    x = 166,787.51

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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.