Home / 145,787.46-201,185.82-82,145.76

Finding the Fourth Proportional to 145,787.46, 201,185.82 and 82,145.76

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Solution

The fourth proportional to 145,787.46, 201,185.82 and 82,145.76 is: 113,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,787.46 : 201,185.82 = 82,145.76 : x
  2. Step 2: Convert to fraction form
    145,787.46/201,185.82 = 82,145.76/x
  3. Step 3: Cross multiply
    145,787.46x = 201,185.82 × 82,145.76
  4. Step 4: Simplify right side
    145,787.46x = 16,526,562,085.12
  5. Step 5: Solve for x
    x = 16,526,562,085.12/145,787.46
  6. Step 6: Final answer
    x = 113,360.66

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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.