Home / 149,269.29-205,924.98-100,855.59

Finding the Fourth Proportional to 149,269.29, 205,924.98 and 100,855.59

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Solution

The fourth proportional to 149,269.29, 205,924.98 and 100,855.59 is: 139,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,269.29 : 205,924.98 = 100,855.59 : x
  2. Step 2: Convert to fraction form
    149,269.29/205,924.98 = 100,855.59/x
  3. Step 3: Cross multiply
    149,269.29x = 205,924.98 × 100,855.59
  4. Step 4: Simplify right side
    149,269.29x = 20,768,685,353.64
  5. Step 5: Solve for x
    x = 20,768,685,353.64/149,269.29
  6. Step 6: Final answer
    x = 139,135.69

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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.