Home / 189,256.92-261,192.96-141,427.20

Finding the Fourth Proportional to 189,256.92, 261,192.96 and 141,427.20

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Solution

The fourth proportional to 189,256.92, 261,192.96 and 141,427.20 is: 195,183.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,256.92 : 261,192.96 = 141,427.20 : x
  2. Step 2: Convert to fraction form
    189,256.92/261,192.96 = 141,427.20/x
  3. Step 3: Cross multiply
    189,256.92x = 261,192.96 × 141,427.20
  4. Step 4: Simplify right side
    189,256.92x = 36,939,788,992.51
  5. Step 5: Solve for x
    x = 36,939,788,992.51/189,256.92
  6. Step 6: Final answer
    x = 195,183.29

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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.