Home / 184,192.40-276,288.60-128,205.20

Finding the Fourth Proportional to 184,192.40, 276,288.60 and 128,205.20

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Solution

The fourth proportional to 184,192.40, 276,288.60 and 128,205.20 is: 192,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,192.40 : 276,288.60 = 128,205.20 : x
  2. Step 2: Convert to fraction form
    184,192.40/276,288.60 = 128,205.20/x
  3. Step 3: Cross multiply
    184,192.40x = 276,288.60 × 128,205.20
  4. Step 4: Simplify right side
    184,192.40x = 35,421,635,220.72
  5. Step 5: Solve for x
    x = 35,421,635,220.72/184,192.40
  6. Step 6: Final answer
    x = 192,307.80

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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.