Home / 203,455.14-280,771.46-112,814.93

Finding the Fourth Proportional to 203,455.14, 280,771.46 and 112,814.93

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Solution

The fourth proportional to 203,455.14, 280,771.46 and 112,814.93 is: 155,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,455.14 : 280,771.46 = 112,814.93 : x
  2. Step 2: Convert to fraction form
    203,455.14/280,771.46 = 112,814.93/x
  3. Step 3: Cross multiply
    203,455.14x = 280,771.46 × 112,814.93
  4. Step 4: Simplify right side
    203,455.14x = 31,675,212,222.05
  5. Step 5: Solve for x
    x = 31,675,212,222.05/203,455.14
  6. Step 6: Final answer
    x = 155,686.47

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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.