Home / 118,427.20-177,640.80-102,529.60

Finding the Fourth Proportional to 118,427.20, 177,640.80 and 102,529.60

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Solution

The fourth proportional to 118,427.20, 177,640.80 and 102,529.60 is: 153,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,427.20 : 177,640.80 = 102,529.60 : x
  2. Step 2: Convert to fraction form
    118,427.20/177,640.80 = 102,529.60/x
  3. Step 3: Cross multiply
    118,427.20x = 177,640.80 × 102,529.60
  4. Step 4: Simplify right side
    118,427.20x = 18,213,440,167.68
  5. Step 5: Solve for x
    x = 18,213,440,167.68/118,427.20
  6. Step 6: Final answer
    x = 153,794.40

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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.