Home / 209,738.40-314,483.16-83,310.66

Finding the Fourth Proportional to 209,738.40, 314,483.16 and 83,310.66

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Solution

The fourth proportional to 209,738.40, 314,483.16 and 83,310.66 is: 124,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,738.40 : 314,483.16 = 83,310.66 : x
  2. Step 2: Convert to fraction form
    209,738.40/314,483.16 = 83,310.66/x
  3. Step 3: Cross multiply
    209,738.40x = 314,483.16 × 83,310.66
  4. Step 4: Simplify right side
    209,738.40x = 26,199,799,618.49
  5. Step 5: Solve for x
    x = 26,199,799,618.49/209,738.40
  6. Step 6: Final answer
    x = 124,916.56

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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.