Home / 192,470.04-288,639.72-74,131.56

Finding the Fourth Proportional to 192,470.04, 288,639.72 and 74,131.56

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Solution

The fourth proportional to 192,470.04, 288,639.72 and 74,131.56 is: 111,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,470.04 : 288,639.72 = 74,131.56 : x
  2. Step 2: Convert to fraction form
    192,470.04/288,639.72 = 74,131.56/x
  3. Step 3: Cross multiply
    192,470.04x = 288,639.72 × 74,131.56
  4. Step 4: Simplify right side
    192,470.04x = 21,397,312,721.56
  5. Step 5: Solve for x
    x = 21,397,312,721.56/192,470.04
  6. Step 6: Final answer
    x = 111,172.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.