Home / 136,084.82-203,690.49-72,746.60

Finding the Fourth Proportional to 136,084.82, 203,690.49 and 72,746.60

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Solution

The fourth proportional to 136,084.82, 203,690.49 and 72,746.60 is: 108,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,084.82 : 203,690.49 = 72,746.60 : x
  2. Step 2: Convert to fraction form
    136,084.82/203,690.49 = 72,746.60/x
  3. Step 3: Cross multiply
    136,084.82x = 203,690.49 × 72,746.60
  4. Step 4: Simplify right side
    136,084.82x = 14,817,790,599.83
  5. Step 5: Solve for x
    x = 14,817,790,599.83/136,084.82
  6. Step 6: Final answer
    x = 108,886.43

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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.