Home / 155,815.09-233,538.10-71,504.19

Finding the Fourth Proportional to 155,815.09, 233,538.10 and 71,504.19

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Solution

The fourth proportional to 155,815.09, 233,538.10 and 71,504.19 is: 107,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,815.09 : 233,538.10 = 71,504.19 : x
  2. Step 2: Convert to fraction form
    155,815.09/233,538.10 = 71,504.19/x
  3. Step 3: Cross multiply
    155,815.09x = 233,538.10 × 71,504.19
  4. Step 4: Simplify right side
    155,815.09x = 16,698,951,149.43
  5. Step 5: Solve for x
    x = 16,698,951,149.43/155,815.09
  6. Step 6: Final answer
    x = 107,171.59

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1.5x scale

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.