Home / 194,977.80-292,466.70-128,055.60

Finding the Fourth Proportional to 194,977.80, 292,466.70 and 128,055.60

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Solution

The fourth proportional to 194,977.80, 292,466.70 and 128,055.60 is: 192,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,977.80 : 292,466.70 = 128,055.60 : x
  2. Step 2: Convert to fraction form
    194,977.80/292,466.70 = 128,055.60/x
  3. Step 3: Cross multiply
    194,977.80x = 292,466.70 × 128,055.60
  4. Step 4: Simplify right side
    194,977.80x = 37,451,998,748.52
  5. Step 5: Solve for x
    x = 37,451,998,748.52/194,977.80
  6. Step 6: Final answer
    x = 192,083.40

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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.