Home / 145,853.13-218,816.60-40,672.09

Finding the Fourth Proportional to 145,853.13, 218,816.60 and 40,672.09

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Solution

The fourth proportional to 145,853.13, 218,816.60 and 40,672.09 is: 61,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,853.13 : 218,816.60 = 40,672.09 : x
  2. Step 2: Convert to fraction form
    145,853.13/218,816.60 = 40,672.09/x
  3. Step 3: Cross multiply
    145,853.13x = 218,816.60 × 40,672.09
  4. Step 4: Simplify right side
    145,853.13x = 8,899,728,448.69
  5. Step 5: Solve for x
    x = 8,899,728,448.69/145,853.13
  6. Step 6: Final answer
    x = 61,018.43

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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.