Home / 139,758.36-192,860.10-76,095.96

Finding the Fourth Proportional to 139,758.36, 192,860.10 and 76,095.96

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Solution

The fourth proportional to 139,758.36, 192,860.10 and 76,095.96 is: 105,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,758.36 : 192,860.10 = 76,095.96 : x
  2. Step 2: Convert to fraction form
    139,758.36/192,860.10 = 76,095.96/x
  3. Step 3: Cross multiply
    139,758.36x = 192,860.10 × 76,095.96
  4. Step 4: Simplify right side
    139,758.36x = 14,675,874,455.20
  5. Step 5: Solve for x
    x = 14,675,874,455.20/139,758.36
  6. Step 6: Final answer
    x = 105,008.92

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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.