Home / 203,019.75-280,160.24-112,379.67

Finding the Fourth Proportional to 203,019.75, 280,160.24 and 112,379.67

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Solution

The fourth proportional to 203,019.75, 280,160.24 and 112,379.67 is: 155,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,019.75 : 280,160.24 = 112,379.67 : x
  2. Step 2: Convert to fraction form
    203,019.75/280,160.24 = 112,379.67/x
  3. Step 3: Cross multiply
    203,019.75x = 280,160.24 × 112,379.67
  4. Step 4: Simplify right side
    203,019.75x = 31,484,314,756.42
  5. Step 5: Solve for x
    x = 31,484,314,756.42/203,019.75
  6. Step 6: Final answer
    x = 155,080.06

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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.