Home / 190,278.72-285,458.18-71,947.44

Finding the Fourth Proportional to 190,278.72, 285,458.18 and 71,947.44

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Solution

The fourth proportional to 190,278.72, 285,458.18 and 71,947.44 is: 107,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,278.72 : 285,458.18 = 71,947.44 : x
  2. Step 2: Convert to fraction form
    190,278.72/285,458.18 = 71,947.44/x
  3. Step 3: Cross multiply
    190,278.72x = 285,458.18 × 71,947.44
  4. Step 4: Simplify right side
    190,278.72x = 20,537,984,918.32
  5. Step 5: Solve for x
    x = 20,537,984,918.32/190,278.72
  6. Step 6: Final answer
    x = 107,936.32

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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.