Home / 147,814.90-203,984.53-79,831.87

Finding the Fourth Proportional to 147,814.90, 203,984.53 and 79,831.87

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Solution

The fourth proportional to 147,814.90, 203,984.53 and 79,831.87 is: 110,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,814.90 : 203,984.53 = 79,831.87 : x
  2. Step 2: Convert to fraction form
    147,814.90/203,984.53 = 79,831.87/x
  3. Step 3: Cross multiply
    147,814.90x = 203,984.53 × 79,831.87
  4. Step 4: Simplify right side
    147,814.90x = 16,284,465,771.43
  5. Step 5: Solve for x
    x = 16,284,465,771.43/147,814.90
  6. Step 6: Final answer
    x = 110,167.96

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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.