Home / 143,068.66-197,434.74-79,406.44

Finding the Fourth Proportional to 143,068.66, 197,434.74 and 79,406.44

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Solution

The fourth proportional to 143,068.66, 197,434.74 and 79,406.44 is: 109,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068.66 : 197,434.74 = 79,406.44 : x
  2. Step 2: Convert to fraction form
    143,068.66/197,434.74 = 79,406.44/x
  3. Step 3: Cross multiply
    143,068.66x = 197,434.74 × 79,406.44
  4. Step 4: Simplify right side
    143,068.66x = 15,677,589,835.73
  5. Step 5: Solve for x
    x = 15,677,589,835.73/143,068.66
  6. Step 6: Final answer
    x = 109,580.88

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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.