Home / 190,203.08-285,352-57,085.78

Finding the Fourth Proportional to 190,203.08, 285,352 and 57,085.78

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Solution

The fourth proportional to 190,203.08, 285,352 and 57,085.78 is: 85,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,203.08 : 285,352 = 57,085.78 : x
  2. Step 2: Convert to fraction form
    190,203.08/285,352 = 57,085.78/x
  3. Step 3: Cross multiply
    190,203.08x = 285,352 × 57,085.78
  4. Step 4: Simplify right side
    190,203.08x = 16,289,541,494.56
  5. Step 5: Solve for x
    x = 16,289,541,494.56/190,203.08
  6. Step 6: Final answer
    x = 85,642.89

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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.