Home / 209,728.04-289,487.94-142,698.92

Finding the Fourth Proportional to 209,728.04, 289,487.94 and 142,698.92

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Solution

The fourth proportional to 209,728.04, 289,487.94 and 142,698.92 is: 196,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,728.04 : 289,487.94 = 142,698.92 : x
  2. Step 2: Convert to fraction form
    209,728.04/289,487.94 = 142,698.92/x
  3. Step 3: Cross multiply
    209,728.04x = 289,487.94 × 142,698.92
  4. Step 4: Simplify right side
    209,728.04x = 41,309,616,391.02
  5. Step 5: Solve for x
    x = 41,309,616,391.02/209,728.04
  6. Step 6: Final answer
    x = 196,967.54

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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.