Home / 100,064.36-138,083.67-54,733.52

Finding the Fourth Proportional to 100,064.36, 138,083.67 and 54,733.52

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Solution

The fourth proportional to 100,064.36, 138,083.67 and 54,733.52 is: 75,529.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,064.36 : 138,083.67 = 54,733.52 : x
  2. Step 2: Convert to fraction form
    100,064.36/138,083.67 = 54,733.52/x
  3. Step 3: Cross multiply
    100,064.36x = 138,083.67 × 54,733.52
  4. Step 4: Simplify right side
    100,064.36x = 7,557,805,658.83
  5. Step 5: Solve for x
    x = 7,557,805,658.83/100,064.36
  6. Step 6: Final answer
    x = 75,529.44

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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.