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Finding the Fourth Proportional to 160,859.94, 221,986.97 and 89,239.96

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Solution

The fourth proportional to 160,859.94, 221,986.97 and 89,239.96 is: 123,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,859.94 : 221,986.97 = 89,239.96 : x
  2. Step 2: Convert to fraction form
    160,859.94/221,986.97 = 89,239.96/x
  3. Step 3: Cross multiply
    160,859.94x = 221,986.97 × 89,239.96
  4. Step 4: Simplify right side
    160,859.94x = 19,810,108,323.32
  5. Step 5: Solve for x
    x = 19,810,108,323.32/160,859.94
  6. Step 6: Final answer
    x = 123,151.29

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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.