Home / 160,487.94-221,704.05-128,180.14

Finding the Fourth Proportional to 160,487.94, 221,704.05 and 128,180.14

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Solution

The fourth proportional to 160,487.94, 221,704.05 and 128,180.14 is: 177,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,487.94 : 221,704.05 = 128,180.14 : x
  2. Step 2: Convert to fraction form
    160,487.94/221,704.05 = 128,180.14/x
  3. Step 3: Cross multiply
    160,487.94x = 221,704.05 × 128,180.14
  4. Step 4: Simplify right side
    160,487.94x = 28,418,056,167.57
  5. Step 5: Solve for x
    x = 28,418,056,167.57/160,487.94
  6. Step 6: Final answer
    x = 177,072.85

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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.