Home / 154,085.60-231,128.40-94,728.80

Finding the Fourth Proportional to 154,085.60, 231,128.40 and 94,728.80

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Solution

The fourth proportional to 154,085.60, 231,128.40 and 94,728.80 is: 142,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,085.60 : 231,128.40 = 94,728.80 : x
  2. Step 2: Convert to fraction form
    154,085.60/231,128.40 = 94,728.80/x
  3. Step 3: Cross multiply
    154,085.60x = 231,128.40 × 94,728.80
  4. Step 4: Simplify right side
    154,085.60x = 21,894,515,977.92
  5. Step 5: Solve for x
    x = 21,894,515,977.92/154,085.60
  6. Step 6: Final answer
    x = 142,093.20

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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.