Home / 159,336.41-219,890.52-87,723.10

Finding the Fourth Proportional to 159,336.41, 219,890.52 and 87,723.10

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Solution

The fourth proportional to 159,336.41, 219,890.52 and 87,723.10 is: 121,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,336.41 : 219,890.52 = 87,723.10 : x
  2. Step 2: Convert to fraction form
    159,336.41/219,890.52 = 87,723.10/x
  3. Step 3: Cross multiply
    159,336.41x = 219,890.52 × 87,723.10
  4. Step 4: Simplify right side
    159,336.41x = 19,289,478,075.01
  5. Step 5: Solve for x
    x = 19,289,478,075.01/159,336.41
  6. Step 6: Final answer
    x = 121,061.33

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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.