Home / 185,664.58-278,017.23-128,139.33

Finding the Fourth Proportional to 185,664.58, 278,017.23 and 128,139.33

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Solution

The fourth proportional to 185,664.58, 278,017.23 and 128,139.33 is: 191,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,664.58 : 278,017.23 = 128,139.33 : x
  2. Step 2: Convert to fraction form
    185,664.58/278,017.23 = 128,139.33/x
  3. Step 3: Cross multiply
    185,664.58x = 278,017.23 × 128,139.33
  4. Step 4: Simplify right side
    185,664.58x = 35,624,941,468.91
  5. Step 5: Solve for x
    x = 35,624,941,468.91/185,664.58
  6. Step 6: Final answer
    x = 191,877.97

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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.