Home / 190,178.75-285,412.67-70,349.07

Finding the Fourth Proportional to 190,178.75, 285,412.67 and 70,349.07

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Solution

The fourth proportional to 190,178.75, 285,412.67 and 70,349.07 is: 105,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,178.75 : 285,412.67 = 70,349.07 : x
  2. Step 2: Convert to fraction form
    190,178.75/285,412.67 = 70,349.07/x
  3. Step 3: Cross multiply
    190,178.75x = 285,412.67 × 70,349.07
  4. Step 4: Simplify right side
    190,178.75x = 20,078,515,548.97
  5. Step 5: Solve for x
    x = 20,078,515,548.97/190,178.75
  6. Step 6: Final answer
    x = 105,577.07

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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.