Home / 155,815.69-233,538.96-71,504.78

Finding the Fourth Proportional to 155,815.69, 233,538.96 and 71,504.78

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Solution

The fourth proportional to 155,815.69, 233,538.96 and 71,504.78 is: 107,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,815.69 : 233,538.96 = 71,504.78 : x
  2. Step 2: Convert to fraction form
    155,815.69/233,538.96 = 71,504.78/x
  3. Step 3: Cross multiply
    155,815.69x = 233,538.96 × 71,504.78
  4. Step 4: Simplify right side
    155,815.69x = 16,699,151,956.23
  5. Step 5: Solve for x
    x = 16,699,151,956.23/155,815.69
  6. Step 6: Final answer
    x = 107,172.47

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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.