Home / 172,088.08-258,143.49-45,726.53

Finding the Fourth Proportional to 172,088.08, 258,143.49 and 45,726.53

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Solution

The fourth proportional to 172,088.08, 258,143.49 and 45,726.53 is: 68,592.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,088.08 : 258,143.49 = 45,726.53 : x
  2. Step 2: Convert to fraction form
    172,088.08/258,143.49 = 45,726.53/x
  3. Step 3: Cross multiply
    172,088.08x = 258,143.49 × 45,726.53
  4. Step 4: Simplify right side
    172,088.08x = 11,804,004,749.07
  5. Step 5: Solve for x
    x = 11,804,004,749.07/172,088.08
  6. Step 6: Final answer
    x = 68,592.81

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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.