Home / 160,640.32-221,684.88-89,021.50

Finding the Fourth Proportional to 160,640.32, 221,684.88 and 89,021.50

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Solution

The fourth proportional to 160,640.32, 221,684.88 and 89,021.50 is: 122,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,640.32 : 221,684.88 = 89,021.50 : x
  2. Step 2: Convert to fraction form
    160,640.32/221,684.88 = 89,021.50/x
  3. Step 3: Cross multiply
    160,640.32x = 221,684.88 × 89,021.50
  4. Step 4: Simplify right side
    160,640.32x = 19,734,720,544.92
  5. Step 5: Solve for x
    x = 19,734,720,544.92/160,640.32
  6. Step 6: Final answer
    x = 122,850.36

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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.