Home / 122,237.10-183,246.30-80,137.35

Finding the Fourth Proportional to 122,237.10, 183,246.30 and 80,137.35

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Solution

The fourth proportional to 122,237.10, 183,246.30 and 80,137.35 is: 120,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,237.10 : 183,246.30 = 80,137.35 : x
  2. Step 2: Convert to fraction form
    122,237.10/183,246.30 = 80,137.35/x
  3. Step 3: Cross multiply
    122,237.10x = 183,246.30 × 80,137.35
  4. Step 4: Simplify right side
    122,237.10x = 14,684,872,879.31
  5. Step 5: Solve for x
    x = 14,684,872,879.31/122,237.10
  6. Step 6: Final answer
    x = 120,134.34

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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.