Home / 135,556.92-186,834.88-90,153.68

Finding the Fourth Proportional to 135,556.92, 186,834.88 and 90,153.68

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Solution

The fourth proportional to 135,556.92, 186,834.88 and 90,153.68 is: 124,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,556.92 : 186,834.88 = 90,153.68 : x
  2. Step 2: Convert to fraction form
    135,556.92/186,834.88 = 90,153.68/x
  3. Step 3: Cross multiply
    135,556.92x = 186,834.88 × 90,153.68
  4. Step 4: Simplify right side
    135,556.92x = 16,843,851,984.36
  5. Step 5: Solve for x
    x = 16,843,851,984.36/135,556.92
  6. Step 6: Final answer
    x = 124,256.67

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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.