Home / 190,444.86-285,723.18-85,240.44

Finding the Fourth Proportional to 190,444.86, 285,723.18 and 85,240.44

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Solution

The fourth proportional to 190,444.86, 285,723.18 and 85,240.44 is: 127,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,444.86 : 285,723.18 = 85,240.44 : x
  2. Step 2: Convert to fraction form
    190,444.86/285,723.18 = 85,240.44/x
  3. Step 3: Cross multiply
    190,444.86x = 285,723.18 × 85,240.44
  4. Step 4: Simplify right side
    190,444.86x = 24,355,169,581.40
  5. Step 5: Solve for x
    x = 24,355,169,581.40/190,444.86
  6. Step 6: Final answer
    x = 127,885.68

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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.