Home / 83,464.10-125,321.23-72,254.03

Finding the Fourth Proportional to 83,464.10, 125,321.23 and 72,254.03

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Solution

The fourth proportional to 83,464.10, 125,321.23 and 72,254.03 is: 108,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,464.10 : 125,321.23 = 72,254.03 : x
  2. Step 2: Convert to fraction form
    83,464.10/125,321.23 = 72,254.03/x
  3. Step 3: Cross multiply
    83,464.10x = 125,321.23 × 72,254.03
  4. Step 4: Simplify right side
    83,464.10x = 9,054,962,969.34
  5. Step 5: Solve for x
    x = 9,054,962,969.34/83,464.10
  6. Step 6: Final answer
    x = 108,489.31

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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.