Home / 105,105.24-145,044.44-57,357.54

Finding the Fourth Proportional to 105,105.24, 145,044.44 and 57,357.54

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Solution

The fourth proportional to 105,105.24, 145,044.44 and 57,357.54 is: 79,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,105.24 : 145,044.44 = 57,357.54 : x
  2. Step 2: Convert to fraction form
    105,105.24/145,044.44 = 57,357.54/x
  3. Step 3: Cross multiply
    105,105.24x = 145,044.44 × 57,357.54
  4. Step 4: Simplify right side
    105,105.24x = 8,319,392,269.08
  5. Step 5: Solve for x
    x = 8,319,392,269.08/105,105.24
  6. Step 6: Final answer
    x = 79,152.97

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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.