Home / 203,000.75-280,141.58-112,362.96

Finding the Fourth Proportional to 203,000.75, 280,141.58 and 112,362.96

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Solution

The fourth proportional to 203,000.75, 280,141.58 and 112,362.96 is: 155,061.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,000.75 : 280,141.58 = 112,362.96 : x
  2. Step 2: Convert to fraction form
    203,000.75/280,141.58 = 112,362.96/x
  3. Step 3: Cross multiply
    203,000.75x = 280,141.58 × 112,362.96
  4. Step 4: Simplify right side
    203,000.75x = 31,477,537,428.78
  5. Step 5: Solve for x
    x = 31,477,537,428.78/203,000.75
  6. Step 6: Final answer
    x = 155,061.19

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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.