Home / 139,762.14-192,991.65-135,243.06

Finding the Fourth Proportional to 139,762.14, 192,991.65 and 135,243.06

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Solution

The fourth proportional to 139,762.14, 192,991.65 and 135,243.06 is: 186,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,762.14 : 192,991.65 = 135,243.06 : x
  2. Step 2: Convert to fraction form
    139,762.14/192,991.65 = 135,243.06/x
  3. Step 3: Cross multiply
    139,762.14x = 192,991.65 × 135,243.06
  4. Step 4: Simplify right side
    139,762.14x = 26,100,781,300.45
  5. Step 5: Solve for x
    x = 26,100,781,300.45/139,762.14
  6. Step 6: Final answer
    x = 186,751.44

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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.