Home / 215,173.10-296,735.05-137,673.25

Finding the Fourth Proportional to 215,173.10, 296,735.05 and 137,673.25

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Solution

The fourth proportional to 215,173.10, 296,735.05 and 137,673.25 is: 189,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,173.10 : 296,735.05 = 137,673.25 : x
  2. Step 2: Convert to fraction form
    215,173.10/296,735.05 = 137,673.25/x
  3. Step 3: Cross multiply
    215,173.10x = 296,735.05 × 137,673.25
  4. Step 4: Simplify right side
    215,173.10x = 40,852,478,722.41
  5. Step 5: Solve for x
    x = 40,852,478,722.41/215,173.10
  6. Step 6: Final answer
    x = 189,858.67

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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.