Home / 145,385.37-218,078.19-45,546.39

Finding the Fourth Proportional to 145,385.37, 218,078.19 and 45,546.39

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Solution

The fourth proportional to 145,385.37, 218,078.19 and 45,546.39 is: 68,319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,385.37 : 218,078.19 = 45,546.39 : x
  2. Step 2: Convert to fraction form
    145,385.37/218,078.19 = 45,546.39/x
  3. Step 3: Cross multiply
    145,385.37x = 218,078.19 × 45,546.39
  4. Step 4: Simplify right side
    145,385.37x = 9,932,674,292.23
  5. Step 5: Solve for x
    x = 9,932,674,292.23/145,385.37
  6. Step 6: Final answer
    x = 68,319.63

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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.