Home / 139,763.08-192,873.50-76,101.26

Finding the Fourth Proportional to 139,763.08, 192,873.50 and 76,101.26

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Solution

The fourth proportional to 139,763.08, 192,873.50 and 76,101.26 is: 105,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,763.08 : 192,873.50 = 76,101.26 : x
  2. Step 2: Convert to fraction form
    139,763.08/192,873.50 = 76,101.26/x
  3. Step 3: Cross multiply
    139,763.08x = 192,873.50 × 76,101.26
  4. Step 4: Simplify right side
    139,763.08x = 14,677,916,370.61
  5. Step 5: Solve for x
    x = 14,677,916,370.61/139,763.08
  6. Step 6: Final answer
    x = 105,019.98

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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.