Home / 142,350.57-196,458.21-81,923.76

Finding the Fourth Proportional to 142,350.57, 196,458.21 and 81,923.76

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Solution

The fourth proportional to 142,350.57, 196,458.21 and 81,923.76 is: 113,063.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,350.57 : 196,458.21 = 81,923.76 : x
  2. Step 2: Convert to fraction form
    142,350.57/196,458.21 = 81,923.76/x
  3. Step 3: Cross multiply
    142,350.57x = 196,458.21 × 81,923.76
  4. Step 4: Simplify right side
    142,350.57x = 16,094,595,246.07
  5. Step 5: Solve for x
    x = 16,094,595,246.07/142,350.57
  6. Step 6: Final answer
    x = 113,063.09

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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.