Home / 105,133.03-145,087.01-57,388.93

Finding the Fourth Proportional to 105,133.03, 145,087.01 and 57,388.93

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Solution

The fourth proportional to 105,133.03, 145,087.01 and 57,388.93 is: 79,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,133.03 : 145,087.01 = 57,388.93 : x
  2. Step 2: Convert to fraction form
    105,133.03/145,087.01 = 57,388.93/x
  3. Step 3: Cross multiply
    105,133.03x = 145,087.01 × 57,388.93
  4. Step 4: Simplify right side
    105,133.03x = 8,326,388,260.80
  5. Step 5: Solve for x
    x = 8,326,388,260.80/105,133.03
  6. Step 6: Final answer
    x = 79,198.59

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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.