Home / 159,544.10-220,172.36-87,926.73

Finding the Fourth Proportional to 159,544.10, 220,172.36 and 87,926.73

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Solution

The fourth proportional to 159,544.10, 220,172.36 and 87,926.73 is: 121,339.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,544.10 : 220,172.36 = 87,926.73 : x
  2. Step 2: Convert to fraction form
    159,544.10/220,172.36 = 87,926.73/x
  3. Step 3: Cross multiply
    159,544.10x = 220,172.36 × 87,926.73
  4. Step 4: Simplify right side
    159,544.10x = 19,359,035,651.18
  5. Step 5: Solve for x
    x = 19,359,035,651.18/159,544.10
  6. Step 6: Final answer
    x = 121,339.72

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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.