Home / 105,286.67-145,295.29-57,540.03

Finding the Fourth Proportional to 105,286.67, 145,295.29 and 57,540.03

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Solution

The fourth proportional to 105,286.67, 145,295.29 and 57,540.03 is: 79,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,286.67 : 145,295.29 = 57,540.03 : x
  2. Step 2: Convert to fraction form
    105,286.67/145,295.29 = 57,540.03/x
  3. Step 3: Cross multiply
    105,286.67x = 145,295.29 × 57,540.03
  4. Step 4: Simplify right side
    105,286.67x = 8,360,294,547.06
  5. Step 5: Solve for x
    x = 8,360,294,547.06/105,286.67
  6. Step 6: Final answer
    x = 79,405.06

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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.