Home / 104,639.42-156,955.62-45,475.08

Finding the Fourth Proportional to 104,639.42, 156,955.62 and 45,475.08

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Solution

The fourth proportional to 104,639.42, 156,955.62 and 45,475.08 is: 68,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,639.42 : 156,955.62 = 45,475.08 : x
  2. Step 2: Convert to fraction form
    104,639.42/156,955.62 = 45,475.08/x
  3. Step 3: Cross multiply
    104,639.42x = 156,955.62 × 45,475.08
  4. Step 4: Simplify right side
    104,639.42x = 7,137,569,375.95
  5. Step 5: Solve for x
    x = 7,137,569,375.95/104,639.42
  6. Step 6: Final answer
    x = 68,211.09

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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.