Home / 99,787.75-149,602.12-57,619.96

Finding the Fourth Proportional to 99,787.75, 149,602.12 and 57,619.96

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Solution

The fourth proportional to 99,787.75, 149,602.12 and 57,619.96 is: 86,384.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,787.75 : 149,602.12 = 57,619.96 : x
  2. Step 2: Convert to fraction form
    99,787.75/149,602.12 = 57,619.96/x
  3. Step 3: Cross multiply
    99,787.75x = 149,602.12 × 57,619.96
  4. Step 4: Simplify right side
    99,787.75x = 8,620,068,170.32
  5. Step 5: Solve for x
    x = 8,620,068,170.32/99,787.75
  6. Step 6: Final answer
    x = 86,384.03

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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.