Home / 154,704.15-213,450.57-89,276.40

Finding the Fourth Proportional to 154,704.15, 213,450.57 and 89,276.40

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Solution

The fourth proportional to 154,704.15, 213,450.57 and 89,276.40 is: 123,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,704.15 : 213,450.57 = 89,276.40 : x
  2. Step 2: Convert to fraction form
    154,704.15/213,450.57 = 89,276.40/x
  3. Step 3: Cross multiply
    154,704.15x = 213,450.57 × 89,276.40
  4. Step 4: Simplify right side
    154,704.15x = 19,056,098,467.55
  5. Step 5: Solve for x
    x = 19,056,098,467.55/154,704.15
  6. Step 6: Final answer
    x = 123,177.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.