Home / 103,837.22-155,768.88-40,649.21

Finding the Fourth Proportional to 103,837.22, 155,768.88 and 40,649.21

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Solution

The fourth proportional to 103,837.22, 155,768.88 and 40,649.21 is: 60,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,837.22 : 155,768.88 = 40,649.21 : x
  2. Step 2: Convert to fraction form
    103,837.22/155,768.88 = 40,649.21/x
  3. Step 3: Cross multiply
    103,837.22x = 155,768.88 × 40,649.21
  4. Step 4: Simplify right side
    103,837.22x = 6,331,881,914.58
  5. Step 5: Solve for x
    x = 6,331,881,914.58/103,837.22
  6. Step 6: Final answer
    x = 60,978.92

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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.