Home / 136,630.05-203,586.85-121,724.43

Finding the Fourth Proportional to 136,630.05, 203,586.85 and 121,724.43

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Solution

The fourth proportional to 136,630.05, 203,586.85 and 121,724.43 is: 181,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,630.05 : 203,586.85 = 121,724.43 : x
  2. Step 2: Convert to fraction form
    136,630.05/203,586.85 = 121,724.43/x
  3. Step 3: Cross multiply
    136,630.05x = 203,586.85 × 121,724.43
  4. Step 4: Simplify right side
    136,630.05x = 24,781,493,271.75
  5. Step 5: Solve for x
    x = 24,781,493,271.75/136,630.05
  6. Step 6: Final answer
    x = 181,376.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.