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Finding the Fourth Proportional to 172,292.19, 237,728.39 and 100,658.37

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Solution

The fourth proportional to 172,292.19, 237,728.39 and 100,658.37 is: 138,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,292.19 : 237,728.39 = 100,658.37 : x
  2. Step 2: Convert to fraction form
    172,292.19/237,728.39 = 100,658.37/x
  3. Step 3: Cross multiply
    172,292.19x = 237,728.39 × 100,658.37
  4. Step 4: Simplify right side
    172,292.19x = 23,929,352,628.31
  5. Step 5: Solve for x
    x = 23,929,352,628.31/172,292.19
  6. Step 6: Final answer
    x = 138,888.20

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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.