Home / 208,931.69-313,522.02-75,822.32

Finding the Fourth Proportional to 208,931.69, 313,522.02 and 75,822.32

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Solution

The fourth proportional to 208,931.69, 313,522.02 and 75,822.32 is: 113,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.69 : 313,522.02 = 75,822.32 : x
  2. Step 2: Convert to fraction form
    208,931.69/313,522.02 = 75,822.32/x
  3. Step 3: Cross multiply
    208,931.69x = 313,522.02 × 75,822.32
  4. Step 4: Simplify right side
    208,931.69x = 23,771,965,359.88
  5. Step 5: Solve for x
    x = 23,771,965,359.88/208,931.69
  6. Step 6: Final answer
    x = 113,778.65

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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.