Home / 112,289.44-168,522.16-78,334.60

Finding the Fourth Proportional to 112,289.44, 168,522.16 and 78,334.60

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Solution

The fourth proportional to 112,289.44, 168,522.16 and 78,334.60 is: 117,563.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,289.44 : 168,522.16 = 78,334.60 : x
  2. Step 2: Convert to fraction form
    112,289.44/168,522.16 = 78,334.60/x
  3. Step 3: Cross multiply
    112,289.44x = 168,522.16 × 78,334.60
  4. Step 4: Simplify right side
    112,289.44x = 13,201,115,994.74
  5. Step 5: Solve for x
    x = 13,201,115,994.74/112,289.44
  6. Step 6: Final answer
    x = 117,563.29

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1.5x scale

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.