Home / 160,344.72-221,216.04-123,561.78

Finding the Fourth Proportional to 160,344.72, 221,216.04 and 123,561.78

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Solution

The fourth proportional to 160,344.72, 221,216.04 and 123,561.78 is: 170,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,344.72 : 221,216.04 = 123,561.78 : x
  2. Step 2: Convert to fraction form
    160,344.72/221,216.04 = 123,561.78/x
  3. Step 3: Cross multiply
    160,344.72x = 221,216.04 × 123,561.78
  4. Step 4: Simplify right side
    160,344.72x = 27,333,847,666.95
  5. Step 5: Solve for x
    x = 27,333,847,666.95/160,344.72
  6. Step 6: Final answer
    x = 170,469.27

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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.