Home / 145,401.37-200,806.86-129,551.39

Finding the Fourth Proportional to 145,401.37, 200,806.86 and 129,551.39

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Solution

The fourth proportional to 145,401.37, 200,806.86 and 129,551.39 is: 178,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,401.37 : 200,806.86 = 129,551.39 : x
  2. Step 2: Convert to fraction form
    145,401.37/200,806.86 = 129,551.39/x
  3. Step 3: Cross multiply
    145,401.37x = 200,806.86 × 129,551.39
  4. Step 4: Simplify right side
    145,401.37x = 26,014,807,834.54
  5. Step 5: Solve for x
    x = 26,014,807,834.54/145,401.37
  6. Step 6: Final answer
    x = 178,917.21

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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.