Home / 112,396.93-155,103.18-61,411.43

Finding the Fourth Proportional to 112,396.93, 155,103.18 and 61,411.43

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Solution

The fourth proportional to 112,396.93, 155,103.18 and 61,411.43 is: 84,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,396.93 : 155,103.18 = 61,411.43 : x
  2. Step 2: Convert to fraction form
    112,396.93/155,103.18 = 61,411.43/x
  3. Step 3: Cross multiply
    112,396.93x = 155,103.18 × 61,411.43
  4. Step 4: Simplify right side
    112,396.93x = 9,525,108,081.35
  5. Step 5: Solve for x
    x = 9,525,108,081.35/112,396.93
  6. Step 6: Final answer
    x = 84,745.27

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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.