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Finding the Fourth Proportional to 172,372.09, 237,871.20 and 96,920.59

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Solution

The fourth proportional to 172,372.09, 237,871.20 and 96,920.59 is: 133,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,372.09 : 237,871.20 = 96,920.59 : x
  2. Step 2: Convert to fraction form
    172,372.09/237,871.20 = 96,920.59/x
  3. Step 3: Cross multiply
    172,372.09x = 237,871.20 × 96,920.59
  4. Step 4: Simplify right side
    172,372.09x = 23,054,617,048.01
  5. Step 5: Solve for x
    x = 23,054,617,048.01/172,372.09
  6. Step 6: Final answer
    x = 133,749.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.