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Finding the Fourth Proportional to 172,667.70, 259,019.56 and 66,051.45

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Solution

The fourth proportional to 172,667.70, 259,019.56 and 66,051.45 is: 99,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,667.70 : 259,019.56 = 66,051.45 : x
  2. Step 2: Convert to fraction form
    172,667.70/259,019.56 = 66,051.45/x
  3. Step 3: Cross multiply
    172,667.70x = 259,019.56 × 66,051.45
  4. Step 4: Simplify right side
    172,667.70x = 17,108,617,998.78
  5. Step 5: Solve for x
    x = 17,108,617,998.78/172,667.70
  6. Step 6: Final answer
    x = 99,084.07

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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.