Home / 103,825.26-155,168.91-75,804.35

Finding the Fourth Proportional to 103,825.26, 155,168.91 and 75,804.35

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Solution

The fourth proportional to 103,825.26, 155,168.91 and 75,804.35 is: 113,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,825.26 : 155,168.91 = 75,804.35 : x
  2. Step 2: Convert to fraction form
    103,825.26/155,168.91 = 75,804.35/x
  3. Step 3: Cross multiply
    103,825.26x = 155,168.91 × 75,804.35
  4. Step 4: Simplify right side
    103,825.26x = 11,762,477,586.91
  5. Step 5: Solve for x
    x = 11,762,477,586.91/103,825.26
  6. Step 6: Final answer
    x = 113,291.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.