Home / 132,622.12-183,020.88-72,194.50

Finding the Fourth Proportional to 132,622.12, 183,020.88 and 72,194.50

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Solution

The fourth proportional to 132,622.12, 183,020.88 and 72,194.50 is: 99,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,622.12 : 183,020.88 = 72,194.50 : x
  2. Step 2: Convert to fraction form
    132,622.12/183,020.88 = 72,194.50/x
  3. Step 3: Cross multiply
    132,622.12x = 183,020.88 × 72,194.50
  4. Step 4: Simplify right side
    132,622.12x = 13,213,100,921.16
  5. Step 5: Solve for x
    x = 13,213,100,921.16/132,622.12
  6. Step 6: Final answer
    x = 99,629.69

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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.