Home / 160,621.36-221,657.88-89,000.80

Finding the Fourth Proportional to 160,621.36, 221,657.88 and 89,000.80

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Solution

The fourth proportional to 160,621.36, 221,657.88 and 89,000.80 is: 122,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,621.36 : 221,657.88 = 89,000.80 : x
  2. Step 2: Convert to fraction form
    160,621.36/221,657.88 = 89,000.80/x
  3. Step 3: Cross multiply
    160,621.36x = 221,657.88 × 89,000.80
  4. Step 4: Simplify right side
    160,621.36x = 19,727,728,646.30
  5. Step 5: Solve for x
    x = 19,727,728,646.30/160,621.36
  6. Step 6: Final answer
    x = 122,821.33

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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.