Home / 189,392.93-261,360.60-103,353.61

Finding the Fourth Proportional to 189,392.93, 261,360.60 and 103,353.61

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Solution

The fourth proportional to 189,392.93, 261,360.60 and 103,353.61 is: 142,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,392.93 : 261,360.60 = 103,353.61 : x
  2. Step 2: Convert to fraction form
    189,392.93/261,360.60 = 103,353.61/x
  3. Step 3: Cross multiply
    189,392.93x = 261,360.60 × 103,353.61
  4. Step 4: Simplify right side
    189,392.93x = 27,012,561,460.89
  5. Step 5: Solve for x
    x = 27,012,561,460.89/189,392.93
  6. Step 6: Final answer
    x = 142,627.09

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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.