Home / 189,161.58-261,045-104,281.68

Finding the Fourth Proportional to 189,161.58, 261,045 and 104,281.68

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Solution

The fourth proportional to 189,161.58, 261,045 and 104,281.68 is: 143,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,161.58 : 261,045 = 104,281.68 : x
  2. Step 2: Convert to fraction form
    189,161.58/261,045 = 104,281.68/x
  3. Step 3: Cross multiply
    189,161.58x = 261,045 × 104,281.68
  4. Step 4: Simplify right side
    189,161.58x = 27,222,211,155.60
  5. Step 5: Solve for x
    x = 27,222,211,155.60/189,161.58
  6. Step 6: Final answer
    x = 143,909.83

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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.