Home / 163,412.20-225,516.90-91,788.52

Finding the Fourth Proportional to 163,412.20, 225,516.90 and 91,788.52

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Solution

The fourth proportional to 163,412.20, 225,516.90 and 91,788.52 is: 126,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,412.20 : 225,516.90 = 91,788.52 : x
  2. Step 2: Convert to fraction form
    163,412.20/225,516.90 = 91,788.52/x
  3. Step 3: Cross multiply
    163,412.20x = 225,516.90 × 91,788.52
  4. Step 4: Simplify right side
    163,412.20x = 20,699,862,485.99
  5. Step 5: Solve for x
    x = 20,699,862,485.99/163,412.20
  6. Step 6: Final answer
    x = 126,672.69

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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.