Home / 99,137.41-136,809.68-53,815.34

Finding the Fourth Proportional to 99,137.41, 136,809.68 and 53,815.34

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Solution

The fourth proportional to 99,137.41, 136,809.68 and 53,815.34 is: 74,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,137.41 : 136,809.68 = 53,815.34 : x
  2. Step 2: Convert to fraction form
    99,137.41/136,809.68 = 53,815.34/x
  3. Step 3: Cross multiply
    99,137.41x = 136,809.68 × 53,815.34
  4. Step 4: Simplify right side
    99,137.41x = 7,362,459,517.44
  5. Step 5: Solve for x
    x = 7,362,459,517.44/99,137.41
  6. Step 6: Final answer
    x = 74,265.20

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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.