Home / 208,931.25-313,521.41-75,821.91

Finding the Fourth Proportional to 208,931.25, 313,521.41 and 75,821.91

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Solution

The fourth proportional to 208,931.25, 313,521.41 and 75,821.91 is: 113,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.25 : 313,521.41 = 75,821.91 : x
  2. Step 2: Convert to fraction form
    208,931.25/313,521.41 = 75,821.91/x
  3. Step 3: Cross multiply
    208,931.25x = 313,521.41 × 75,821.91
  4. Step 4: Simplify right side
    208,931.25x = 23,771,791,752.98
  5. Step 5: Solve for x
    x = 23,771,791,752.98/208,931.25
  6. Step 6: Final answer
    x = 113,778.06

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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.