Home / 122,438.56-183,657.48-69,106.36

Finding the Fourth Proportional to 122,438.56, 183,657.48 and 69,106.36

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Solution

The fourth proportional to 122,438.56, 183,657.48 and 69,106.36 is: 103,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,438.56 : 183,657.48 = 69,106.36 : x
  2. Step 2: Convert to fraction form
    122,438.56/183,657.48 = 69,106.36/x
  3. Step 3: Cross multiply
    122,438.56x = 183,657.48 × 69,106.36
  4. Step 4: Simplify right side
    122,438.56x = 12,691,899,929.57
  5. Step 5: Solve for x
    x = 12,691,899,929.57/122,438.56
  6. Step 6: Final answer
    x = 103,659.34

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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.