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Finding the Fourth Proportional to 172,906.14, 238,655.67 and 112,642.14

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Solution

The fourth proportional to 172,906.14, 238,655.67 and 112,642.14 is: 155,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,906.14 : 238,655.67 = 112,642.14 : x
  2. Step 2: Convert to fraction form
    172,906.14/238,655.67 = 112,642.14/x
  3. Step 3: Cross multiply
    172,906.14x = 238,655.67 × 112,642.14
  4. Step 4: Simplify right side
    172,906.14x = 26,882,685,391.93
  5. Step 5: Solve for x
    x = 26,882,685,391.93/172,906.14
  6. Step 6: Final answer
    x = 155,475.60

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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.