Home / 122,540.30-183,810.45-69,955.10

Finding the Fourth Proportional to 122,540.30, 183,810.45 and 69,955.10

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Solution

The fourth proportional to 122,540.30, 183,810.45 and 69,955.10 is: 104,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,540.30 : 183,810.45 = 69,955.10 : x
  2. Step 2: Convert to fraction form
    122,540.30/183,810.45 = 69,955.10/x
  3. Step 3: Cross multiply
    122,540.30x = 183,810.45 × 69,955.10
  4. Step 4: Simplify right side
    122,540.30x = 12,858,478,410.80
  5. Step 5: Solve for x
    x = 12,858,478,410.80/122,540.30
  6. Step 6: Final answer
    x = 104,932.65

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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.