Home / 160,640.45-221,685.11-89,021.66

Finding the Fourth Proportional to 160,640.45, 221,685.11 and 89,021.66

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Solution

The fourth proportional to 160,640.45, 221,685.11 and 89,021.66 is: 122,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,640.45 : 221,685.11 = 89,021.66 : x
  2. Step 2: Convert to fraction form
    160,640.45/221,685.11 = 89,021.66/x
  3. Step 3: Cross multiply
    160,640.45x = 221,685.11 × 89,021.66
  4. Step 4: Simplify right side
    160,640.45x = 19,734,776,044.37
  5. Step 5: Solve for x
    x = 19,734,776,044.37/160,640.45
  6. Step 6: Final answer
    x = 122,850.60

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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.