Home / 111,647.02-154,063.95-63,889.42

Finding the Fourth Proportional to 111,647.02, 154,063.95 and 63,889.42

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Solution

The fourth proportional to 111,647.02, 154,063.95 and 63,889.42 is: 88,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,647.02 : 154,063.95 = 63,889.42 : x
  2. Step 2: Convert to fraction form
    111,647.02/154,063.95 = 63,889.42/x
  3. Step 3: Cross multiply
    111,647.02x = 154,063.95 × 63,889.42
  4. Step 4: Simplify right side
    111,647.02x = 9,843,056,408.41
  5. Step 5: Solve for x
    x = 9,843,056,408.41/111,647.02
  6. Step 6: Final answer
    x = 88,162.29

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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.