Home / 172,939.93-257,690.61-154,075

Finding the Fourth Proportional to 172,939.93, 257,690.61 and 154,075

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Solution

The fourth proportional to 172,939.93, 257,690.61 and 154,075 is: 229,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,939.93 : 257,690.61 = 154,075 : x
  2. Step 2: Convert to fraction form
    172,939.93/257,690.61 = 154,075/x
  3. Step 3: Cross multiply
    172,939.93x = 257,690.61 × 154,075
  4. Step 4: Simplify right side
    172,939.93x = 39,703,680,735.75
  5. Step 5: Solve for x
    x = 39,703,680,735.75/172,939.93
  6. Step 6: Final answer
    x = 229,580.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.