Home / 190,319.16-285,453.90-71,975.10

Finding the Fourth Proportional to 190,319.16, 285,453.90 and 71,975.10

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Solution

The fourth proportional to 190,319.16, 285,453.90 and 71,975.10 is: 107,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,319.16 : 285,453.90 = 71,975.10 : x
  2. Step 2: Convert to fraction form
    190,319.16/285,453.90 = 71,975.10/x
  3. Step 3: Cross multiply
    190,319.16x = 285,453.90 × 71,975.10
  4. Step 4: Simplify right side
    190,319.16x = 20,545,572,997.89
  5. Step 5: Solve for x
    x = 20,545,572,997.89/190,319.16
  6. Step 6: Final answer
    x = 107,953.26

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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.