Home / 185,211.60-277,342.68-128,206.56

Finding the Fourth Proportional to 185,211.60, 277,342.68 and 128,206.56

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Solution

The fourth proportional to 185,211.60, 277,342.68 and 128,206.56 is: 191,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,211.60 : 277,342.68 = 128,206.56 : x
  2. Step 2: Convert to fraction form
    185,211.60/277,342.68 = 128,206.56/x
  3. Step 3: Cross multiply
    185,211.60x = 277,342.68 × 128,206.56
  4. Step 4: Simplify right side
    185,211.60x = 35,557,150,943.98
  5. Step 5: Solve for x
    x = 35,557,150,943.98/185,211.60
  6. Step 6: Final answer
    x = 191,981.23

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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.