Home / 133,161.47-199,354-69,831.41

Finding the Fourth Proportional to 133,161.47, 199,354 and 69,831.41

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Solution

The fourth proportional to 133,161.47, 199,354 and 69,831.41 is: 104,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,161.47 : 199,354 = 69,831.41 : x
  2. Step 2: Convert to fraction form
    133,161.47/199,354 = 69,831.41/x
  3. Step 3: Cross multiply
    133,161.47x = 199,354 × 69,831.41
  4. Step 4: Simplify right side
    133,161.47x = 13,921,170,909.14
  5. Step 5: Solve for x
    x = 13,921,170,909.14/133,161.47
  6. Step 6: Final answer
    x = 104,543.54

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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.