Home / 208,282.37-312,358.94-75,145.32

Finding the Fourth Proportional to 208,282.37, 312,358.94 and 75,145.32

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Solution

The fourth proportional to 208,282.37, 312,358.94 and 75,145.32 is: 112,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,282.37 : 312,358.94 = 75,145.32 : x
  2. Step 2: Convert to fraction form
    208,282.37/312,358.94 = 75,145.32/x
  3. Step 3: Cross multiply
    208,282.37x = 312,358.94 × 75,145.32
  4. Step 4: Simplify right side
    208,282.37x = 23,472,312,501.16
  5. Step 5: Solve for x
    x = 23,472,312,501.16/208,282.37
  6. Step 6: Final answer
    x = 112,694.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.