Home / 88,380.09-132,570.14-72,764.91

Finding the Fourth Proportional to 88,380.09, 132,570.14 and 72,764.91

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Solution

The fourth proportional to 88,380.09, 132,570.14 and 72,764.91 is: 109,147.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,380.09 : 132,570.14 = 72,764.91 : x
  2. Step 2: Convert to fraction form
    88,380.09/132,570.14 = 72,764.91/x
  3. Step 3: Cross multiply
    88,380.09x = 132,570.14 × 72,764.91
  4. Step 4: Simplify right side
    88,380.09x = 9,646,453,941.96
  5. Step 5: Solve for x
    x = 9,646,453,941.96/88,380.09
  6. Step 6: Final answer
    x = 109,147.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.