Home / 190,283.38-285,451.70-77,979.54

Finding the Fourth Proportional to 190,283.38, 285,451.70 and 77,979.54

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Solution

The fourth proportional to 190,283.38, 285,451.70 and 77,979.54 is: 116,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,283.38 : 285,451.70 = 77,979.54 : x
  2. Step 2: Convert to fraction form
    190,283.38/285,451.70 = 77,979.54/x
  3. Step 3: Cross multiply
    190,283.38x = 285,451.70 × 77,979.54
  4. Step 4: Simplify right side
    190,283.38x = 22,259,392,938.76
  5. Step 5: Solve for x
    x = 22,259,392,938.76/190,283.38
  6. Step 6: Final answer
    x = 116,980.23

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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.