Home / 208,941.68-313,397.19-66,748.77

Finding the Fourth Proportional to 208,941.68, 313,397.19 and 66,748.77

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Solution

The fourth proportional to 208,941.68, 313,397.19 and 66,748.77 is: 100,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,941.68 : 313,397.19 = 66,748.77 : x
  2. Step 2: Convert to fraction form
    208,941.68/313,397.19 = 66,748.77/x
  3. Step 3: Cross multiply
    208,941.68x = 313,397.19 × 66,748.77
  4. Step 4: Simplify right side
    208,941.68x = 20,918,876,953.96
  5. Step 5: Solve for x
    x = 20,918,876,953.96/208,941.68
  6. Step 6: Final answer
    x = 100,118.26

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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.