Home / 189,444.41-261,429.29-103,400.54

Finding the Fourth Proportional to 189,444.41, 261,429.29 and 103,400.54

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Solution

The fourth proportional to 189,444.41, 261,429.29 and 103,400.54 is: 142,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,444.41 : 261,429.29 = 103,400.54 : x
  2. Step 2: Convert to fraction form
    189,444.41/261,429.29 = 103,400.54/x
  3. Step 3: Cross multiply
    189,444.41x = 261,429.29 × 103,400.54
  4. Step 4: Simplify right side
    189,444.41x = 27,031,929,757.82
  5. Step 5: Solve for x
    x = 27,031,929,757.82/189,444.41
  6. Step 6: Final answer
    x = 142,690.56

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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.