Home / 172,936.38-257,685.39-154,071.45

Finding the Fourth Proportional to 172,936.38, 257,685.39 and 154,071.45

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Solution

The fourth proportional to 172,936.38, 257,685.39 and 154,071.45 is: 229,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,936.38 : 257,685.39 = 154,071.45 : x
  2. Step 2: Convert to fraction form
    172,936.38/257,685.39 = 154,071.45/x
  3. Step 3: Cross multiply
    172,936.38x = 257,685.39 × 154,071.45
  4. Step 4: Simplify right side
    172,936.38x = 39,701,961,681.12
  5. Step 5: Solve for x
    x = 39,701,961,681.12/172,936.38
  6. Step 6: Final answer
    x = 229,575.53

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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.