Home / 160,623.72-221,459.22-103,161.60

Finding the Fourth Proportional to 160,623.72, 221,459.22 and 103,161.60

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Solution

The fourth proportional to 160,623.72, 221,459.22 and 103,161.60 is: 142,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,623.72 : 221,459.22 = 103,161.60 : x
  2. Step 2: Convert to fraction form
    160,623.72/221,459.22 = 103,161.60/x
  3. Step 3: Cross multiply
    160,623.72x = 221,459.22 × 103,161.60
  4. Step 4: Simplify right side
    160,623.72x = 22,846,087,469.95
  5. Step 5: Solve for x
    x = 22,846,087,469.95/160,623.72
  6. Step 6: Final answer
    x = 142,233.58

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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.