Home / 105,197.65-145,173.91-57,452.40

Finding the Fourth Proportional to 105,197.65, 145,173.91 and 57,452.40

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Solution

The fourth proportional to 105,197.65, 145,173.91 and 57,452.40 is: 79,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,197.65 : 145,173.91 = 57,452.40 : x
  2. Step 2: Convert to fraction form
    105,197.65/145,173.91 = 57,452.40/x
  3. Step 3: Cross multiply
    105,197.65x = 145,173.91 × 57,452.40
  4. Step 4: Simplify right side
    105,197.65x = 8,340,589,546.88
  5. Step 5: Solve for x
    x = 8,340,589,546.88/105,197.65
  6. Step 6: Final answer
    x = 79,284.94

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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.