Home / 145,610.38-218,415.66-40,429.36

Finding the Fourth Proportional to 145,610.38, 218,415.66 and 40,429.36

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Solution

The fourth proportional to 145,610.38, 218,415.66 and 40,429.36 is: 60,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,610.38 : 218,415.66 = 40,429.36 : x
  2. Step 2: Convert to fraction form
    145,610.38/218,415.66 = 40,429.36/x
  3. Step 3: Cross multiply
    145,610.38x = 218,415.66 × 40,429.36
  4. Step 4: Simplify right side
    145,610.38x = 8,830,405,347.78
  5. Step 5: Solve for x
    x = 8,830,405,347.78/145,610.38
  6. Step 6: Final answer
    x = 60,644.06

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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.