Home / 208,931.50-313,521.78-75,822.16

Finding the Fourth Proportional to 208,931.50, 313,521.78 and 75,822.16

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Solution

The fourth proportional to 208,931.50, 313,521.78 and 75,822.16 is: 113,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.50 : 313,521.78 = 75,822.16 : x
  2. Step 2: Convert to fraction form
    208,931.50/313,521.78 = 75,822.16/x
  3. Step 3: Cross multiply
    208,931.50x = 313,521.78 × 75,822.16
  4. Step 4: Simplify right side
    208,931.50x = 23,771,898,566.64
  5. Step 5: Solve for x
    x = 23,771,898,566.64/208,931.50
  6. Step 6: Final answer
    x = 113,778.43

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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.