Home / 122,961.60-184,442.40-112,075.20

Finding the Fourth Proportional to 122,961.60, 184,442.40 and 112,075.20

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Solution

The fourth proportional to 122,961.60, 184,442.40 and 112,075.20 is: 168,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,961.60 : 184,442.40 = 112,075.20 : x
  2. Step 2: Convert to fraction form
    122,961.60/184,442.40 = 112,075.20/x
  3. Step 3: Cross multiply
    122,961.60x = 184,442.40 × 112,075.20
  4. Step 4: Simplify right side
    122,961.60x = 20,671,418,868.48
  5. Step 5: Solve for x
    x = 20,671,418,868.48/122,961.60
  6. Step 6: Final answer
    x = 168,112.80

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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.