Home / 139,637.52-192,699.81-75,975.57

Finding the Fourth Proportional to 139,637.52, 192,699.81 and 75,975.57

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Solution

The fourth proportional to 139,637.52, 192,699.81 and 75,975.57 is: 104,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,637.52 : 192,699.81 = 75,975.57 : x
  2. Step 2: Convert to fraction form
    139,637.52/192,699.81 = 75,975.57/x
  3. Step 3: Cross multiply
    139,637.52x = 192,699.81 × 75,975.57
  4. Step 4: Simplify right side
    139,637.52x = 14,640,477,903.64
  5. Step 5: Solve for x
    x = 14,640,477,903.64/139,637.52
  6. Step 6: Final answer
    x = 104,846.30

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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.