Home / 190,698.89-285,937.56-72,305.65

Finding the Fourth Proportional to 190,698.89, 285,937.56 and 72,305.65

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Solution

The fourth proportional to 190,698.89, 285,937.56 and 72,305.65 is: 108,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,698.89 : 285,937.56 = 72,305.65 : x
  2. Step 2: Convert to fraction form
    190,698.89/285,937.56 = 72,305.65/x
  3. Step 3: Cross multiply
    190,698.89x = 285,937.56 × 72,305.65
  4. Step 4: Simplify right side
    190,698.89x = 20,674,901,135.21
  5. Step 5: Solve for x
    x = 20,674,901,135.21/190,698.89
  6. Step 6: Final answer
    x = 108,416.47

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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.