Home / 160,800.88-221,890.32-89,179.60

Finding the Fourth Proportional to 160,800.88, 221,890.32 and 89,179.60

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Solution

The fourth proportional to 160,800.88, 221,890.32 and 89,179.60 is: 123,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,800.88 : 221,890.32 = 89,179.60 : x
  2. Step 2: Convert to fraction form
    160,800.88/221,890.32 = 89,179.60/x
  3. Step 3: Cross multiply
    160,800.88x = 221,890.32 × 89,179.60
  4. Step 4: Simplify right side
    160,800.88x = 19,788,089,981.47
  5. Step 5: Solve for x
    x = 19,788,089,981.47/160,800.88
  6. Step 6: Final answer
    x = 123,059.59

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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.