Home / 100,172.44-138,238.02-62,446.84

Finding the Fourth Proportional to 100,172.44, 138,238.02 and 62,446.84

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Solution

The fourth proportional to 100,172.44, 138,238.02 and 62,446.84 is: 86,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,172.44 : 138,238.02 = 62,446.84 : x
  2. Step 2: Convert to fraction form
    100,172.44/138,238.02 = 62,446.84/x
  3. Step 3: Cross multiply
    100,172.44x = 138,238.02 × 62,446.84
  4. Step 4: Simplify right side
    100,172.44x = 8,632,527,516.86
  5. Step 5: Solve for x
    x = 8,632,527,516.86/100,172.44
  6. Step 6: Final answer
    x = 86,176.67

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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.