Home / 209,281.41-313,915.07-90,952.76

Finding the Fourth Proportional to 209,281.41, 313,915.07 and 90,952.76

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Solution

The fourth proportional to 209,281.41, 313,915.07 and 90,952.76 is: 136,426.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,281.41 : 313,915.07 = 90,952.76 : x
  2. Step 2: Convert to fraction form
    209,281.41/313,915.07 = 90,952.76/x
  3. Step 3: Cross multiply
    209,281.41x = 313,915.07 × 90,952.76
  4. Step 4: Simplify right side
    209,281.41x = 28,551,439,997.75
  5. Step 5: Solve for x
    x = 28,551,439,997.75/209,281.41
  6. Step 6: Final answer
    x = 136,426.07

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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.