Home / 145,418.15-218,129.96-45,576.14

Finding the Fourth Proportional to 145,418.15, 218,129.96 and 45,576.14

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Solution

The fourth proportional to 145,418.15, 218,129.96 and 45,576.14 is: 68,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,418.15 : 218,129.96 = 45,576.14 : x
  2. Step 2: Convert to fraction form
    145,418.15/218,129.96 = 45,576.14/x
  3. Step 3: Cross multiply
    145,418.15x = 218,129.96 × 45,576.14
  4. Step 4: Simplify right side
    145,418.15x = 9,941,520,504.50
  5. Step 5: Solve for x
    x = 9,941,520,504.50/145,418.15
  6. Step 6: Final answer
    x = 68,365.06

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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.