Home / 155,421.21-233,131.80-102,818.39

Finding the Fourth Proportional to 155,421.21, 233,131.80 and 102,818.39

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Solution

The fourth proportional to 155,421.21, 233,131.80 and 102,818.39 is: 154,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,421.21 : 233,131.80 = 102,818.39 : x
  2. Step 2: Convert to fraction form
    155,421.21/233,131.80 = 102,818.39/x
  3. Step 3: Cross multiply
    155,421.21x = 233,131.80 × 102,818.39
  4. Step 4: Simplify right side
    155,421.21x = 23,970,235,168.14
  5. Step 5: Solve for x
    x = 23,970,235,168.14/155,421.21
  6. Step 6: Final answer
    x = 154,227.57

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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.