Home / 118,939.42-164,141.13-65,226.36

Finding the Fourth Proportional to 118,939.42, 164,141.13 and 65,226.36

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Solution

The fourth proportional to 118,939.42, 164,141.13 and 65,226.36 is: 90,014.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,939.42 : 164,141.13 = 65,226.36 : x
  2. Step 2: Convert to fraction form
    118,939.42/164,141.13 = 65,226.36/x
  3. Step 3: Cross multiply
    118,939.42x = 164,141.13 × 65,226.36
  4. Step 4: Simplify right side
    118,939.42x = 10,706,329,296.31
  5. Step 5: Solve for x
    x = 10,706,329,296.31/118,939.42
  6. Step 6: Final answer
    x = 90,014.98

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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.