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Finding the Fourth Proportional to 172,314.09, 237,748.50 and 100,653.39

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Solution

The fourth proportional to 172,314.09, 237,748.50 and 100,653.39 is: 138,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,314.09 : 237,748.50 = 100,653.39 : x
  2. Step 2: Convert to fraction form
    172,314.09/237,748.50 = 100,653.39/x
  3. Step 3: Cross multiply
    172,314.09x = 237,748.50 × 100,653.39
  4. Step 4: Simplify right side
    172,314.09x = 23,930,192,492.42
  5. Step 5: Solve for x
    x = 23,930,192,492.42/172,314.09
  6. Step 6: Final answer
    x = 138,875.43

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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.