Home / 172,288.83-258,412.73-45,938.55

Finding the Fourth Proportional to 172,288.83, 258,412.73 and 45,938.55

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Solution

The fourth proportional to 172,288.83, 258,412.73 and 45,938.55 is: 68,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,288.83 : 258,412.73 = 45,938.55 : x
  2. Step 2: Convert to fraction form
    172,288.83/258,412.73 = 45,938.55/x
  3. Step 3: Cross multiply
    172,288.83x = 258,412.73 × 45,938.55
  4. Step 4: Simplify right side
    172,288.83x = 11,871,105,888.05
  5. Step 5: Solve for x
    x = 11,871,105,888.05/172,288.83
  6. Step 6: Final answer
    x = 68,902.35

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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.