Home / 192,427-265,549.20-105,212.38

Finding the Fourth Proportional to 192,427, 265,549.20 and 105,212.38

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Solution

The fourth proportional to 192,427, 265,549.20 and 105,212.38 is: 145,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,427 : 265,549.20 = 105,212.38 : x
  2. Step 2: Convert to fraction form
    192,427/265,549.20 = 105,212.38/x
  3. Step 3: Cross multiply
    192,427x = 265,549.20 × 105,212.38
  4. Step 4: Simplify right side
    192,427x = 27,939,063,339.10
  5. Step 5: Solve for x
    x = 27,939,063,339.10/192,427
  6. Step 6: Final answer
    x = 145,193.05

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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.