Home / 140,521.37-193,919.47-76,859.01

Finding the Fourth Proportional to 140,521.37, 193,919.47 and 76,859.01

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Solution

The fourth proportional to 140,521.37, 193,919.47 and 76,859.01 is: 106,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,521.37 : 193,919.47 = 76,859.01 : x
  2. Step 2: Convert to fraction form
    140,521.37/193,919.47 = 76,859.01/x
  3. Step 3: Cross multiply
    140,521.37x = 193,919.47 × 76,859.01
  4. Step 4: Simplify right side
    140,521.37x = 14,904,458,291.78
  5. Step 5: Solve for x
    x = 14,904,458,291.78/140,521.37
  6. Step 6: Final answer
    x = 106,065.42

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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.