Home / 160,405.46-221,356.23-88,781.21

Finding the Fourth Proportional to 160,405.46, 221,356.23 and 88,781.21

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Solution

The fourth proportional to 160,405.46, 221,356.23 and 88,781.21 is: 122,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,405.46 : 221,356.23 = 88,781.21 : x
  2. Step 2: Convert to fraction form
    160,405.46/221,356.23 = 88,781.21/x
  3. Step 3: Cross multiply
    160,405.46x = 221,356.23 × 88,781.21
  4. Step 4: Simplify right side
    160,405.46x = 19,652,273,940.44
  5. Step 5: Solve for x
    x = 19,652,273,940.44/160,405.46
  6. Step 6: Final answer
    x = 122,516.24

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1.5x scale

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.