Home / 209,726.04-289,485.18-142,696.92

Finding the Fourth Proportional to 209,726.04, 289,485.18 and 142,696.92

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Solution

The fourth proportional to 209,726.04, 289,485.18 and 142,696.92 is: 196,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,726.04 : 289,485.18 = 142,696.92 : x
  2. Step 2: Convert to fraction form
    209,726.04/289,485.18 = 142,696.92/x
  3. Step 3: Cross multiply
    209,726.04x = 289,485.18 × 142,696.92
  4. Step 4: Simplify right side
    209,726.04x = 41,308,643,571.65
  5. Step 5: Solve for x
    x = 41,308,643,571.65/209,726.04
  6. Step 6: Final answer
    x = 196,964.78

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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.