Home / 139,835.46-192,971.88-76,173.24

Finding the Fourth Proportional to 139,835.46, 192,971.88 and 76,173.24

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Solution

The fourth proportional to 139,835.46, 192,971.88 and 76,173.24 is: 105,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,835.46 : 192,971.88 = 76,173.24 : x
  2. Step 2: Convert to fraction form
    139,835.46/192,971.88 = 76,173.24/x
  3. Step 3: Cross multiply
    139,835.46x = 192,971.88 × 76,173.24
  4. Step 4: Simplify right side
    139,835.46x = 14,699,293,328.49
  5. Step 5: Solve for x
    x = 14,699,293,328.49/139,835.46
  6. Step 6: Final answer
    x = 105,118.50

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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.