Home / 104,840.72-144,678.12-57,094.64

Finding the Fourth Proportional to 104,840.72, 144,678.12 and 57,094.64

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Solution

The fourth proportional to 104,840.72, 144,678.12 and 57,094.64 is: 78,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,840.72 : 144,678.12 = 57,094.64 : x
  2. Step 2: Convert to fraction form
    104,840.72/144,678.12 = 57,094.64/x
  3. Step 3: Cross multiply
    104,840.72x = 144,678.12 × 57,094.64
  4. Step 4: Simplify right side
    104,840.72x = 8,260,345,177.28
  5. Step 5: Solve for x
    x = 8,260,345,177.28/104,840.72
  6. Step 6: Final answer
    x = 78,789.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.