Home / 122,486.36-183,558.36-66,205.10

Finding the Fourth Proportional to 122,486.36, 183,558.36 and 66,205.10

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Solution

The fourth proportional to 122,486.36, 183,558.36 and 66,205.10 is: 99,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,486.36 : 183,558.36 = 66,205.10 : x
  2. Step 2: Convert to fraction form
    122,486.36/183,558.36 = 66,205.10/x
  3. Step 3: Cross multiply
    122,486.36x = 183,558.36 × 66,205.10
  4. Step 4: Simplify right side
    122,486.36x = 12,152,499,579.64
  5. Step 5: Solve for x
    x = 12,152,499,579.64/122,486.36
  6. Step 6: Final answer
    x = 99,215.13

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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.