Home / 122,427.10-183,640.65-84,907.90

Finding the Fourth Proportional to 122,427.10, 183,640.65 and 84,907.90

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Solution

The fourth proportional to 122,427.10, 183,640.65 and 84,907.90 is: 127,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,427.10 : 183,640.65 = 84,907.90 : x
  2. Step 2: Convert to fraction form
    122,427.10/183,640.65 = 84,907.90/x
  3. Step 3: Cross multiply
    122,427.10x = 183,640.65 × 84,907.90
  4. Step 4: Simplify right side
    122,427.10x = 15,592,541,946.14
  5. Step 5: Solve for x
    x = 15,592,541,946.14/122,427.10
  6. Step 6: Final answer
    x = 127,361.85

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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.