Home / 192,421.31-265,541.82-107,538.38

Finding the Fourth Proportional to 192,421.31, 265,541.82 and 107,538.38

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Solution

The fourth proportional to 192,421.31, 265,541.82 and 107,538.38 is: 148,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,421.31 : 265,541.82 = 107,538.38 : x
  2. Step 2: Convert to fraction form
    192,421.31/265,541.82 = 107,538.38/x
  3. Step 3: Cross multiply
    192,421.31x = 265,541.82 × 107,538.38
  4. Step 4: Simplify right side
    192,421.31x = 28,555,937,145.05
  5. Step 5: Solve for x
    x = 28,555,937,145.05/192,421.31
  6. Step 6: Final answer
    x = 148,403.19

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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.