Home / 143,186.70-197,592.18-79,528.59

Finding the Fourth Proportional to 143,186.70, 197,592.18 and 79,528.59

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Solution

The fourth proportional to 143,186.70, 197,592.18 and 79,528.59 is: 109,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.70 : 197,592.18 = 79,528.59 : x
  2. Step 2: Convert to fraction form
    143,186.70/197,592.18 = 79,528.59/x
  3. Step 3: Cross multiply
    143,186.70x = 197,592.18 × 79,528.59
  4. Step 4: Simplify right side
    143,186.70x = 15,714,227,470.43
  5. Step 5: Solve for x
    x = 15,714,227,470.43/143,186.70
  6. Step 6: Final answer
    x = 109,746.42

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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.