Home / 154,824.40-232,236.60-128,580.40

Finding the Fourth Proportional to 154,824.40, 232,236.60 and 128,580.40

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Solution

The fourth proportional to 154,824.40, 232,236.60 and 128,580.40 is: 192,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,824.40 : 232,236.60 = 128,580.40 : x
  2. Step 2: Convert to fraction form
    154,824.40/232,236.60 = 128,580.40/x
  3. Step 3: Cross multiply
    154,824.40x = 232,236.60 × 128,580.40
  4. Step 4: Simplify right side
    154,824.40x = 29,861,074,922.64
  5. Step 5: Solve for x
    x = 29,861,074,922.64/154,824.40
  6. Step 6: Final answer
    x = 192,870.60

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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.