Home / 122,118.36-183,198.30-42,134.64

Finding the Fourth Proportional to 122,118.36, 183,198.30 and 42,134.64

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Solution

The fourth proportional to 122,118.36, 183,198.30 and 42,134.64 is: 63,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,118.36 : 183,198.30 = 42,134.64 : x
  2. Step 2: Convert to fraction form
    122,118.36/183,198.30 = 42,134.64/x
  3. Step 3: Cross multiply
    122,118.36x = 183,198.30 × 42,134.64
  4. Step 4: Simplify right side
    122,118.36x = 7,718,994,419.11
  5. Step 5: Solve for x
    x = 7,718,994,419.11/122,118.36
  6. Step 6: Final answer
    x = 63,209.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.