Home / 285,670.15-394,224.75-156,609.53

Finding the Fourth Proportional to 285,670.15, 394,224.75 and 156,609.53

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Solution

The fourth proportional to 285,670.15, 394,224.75 and 156,609.53 is: 216,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,670.15 : 394,224.75 = 156,609.53 : x
  2. Step 2: Convert to fraction form
    285,670.15/394,224.75 = 156,609.53/x
  3. Step 3: Cross multiply
    285,670.15x = 394,224.75 × 156,609.53
  4. Step 4: Simplify right side
    285,670.15x = 61,739,353,723.07
  5. Step 5: Solve for x
    x = 61,739,353,723.07/285,670.15
  6. Step 6: Final answer
    x = 216,121.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.