Home / 112,137.90-154,754.03-61,153.42

Finding the Fourth Proportional to 112,137.90, 154,754.03 and 61,153.42

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Solution

The fourth proportional to 112,137.90, 154,754.03 and 61,153.42 is: 84,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,137.90 : 154,754.03 = 61,153.42 : x
  2. Step 2: Convert to fraction form
    112,137.90/154,754.03 = 61,153.42/x
  3. Step 3: Cross multiply
    112,137.90x = 154,754.03 × 61,153.42
  4. Step 4: Simplify right side
    112,137.90x = 9,463,738,193.28
  5. Step 5: Solve for x
    x = 9,463,738,193.28/112,137.90
  6. Step 6: Final answer
    x = 84,393.75

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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.