Home / 137,271.86-189,435.25-76,842.62

Finding the Fourth Proportional to 137,271.86, 189,435.25 and 76,842.62

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Solution

The fourth proportional to 137,271.86, 189,435.25 and 76,842.62 is: 106,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,271.86 : 189,435.25 = 76,842.62 : x
  2. Step 2: Convert to fraction form
    137,271.86/189,435.25 = 76,842.62/x
  3. Step 3: Cross multiply
    137,271.86x = 189,435.25 × 76,842.62
  4. Step 4: Simplify right side
    137,271.86x = 14,556,701,211.84
  5. Step 5: Solve for x
    x = 14,556,701,211.84/137,271.86
  6. Step 6: Final answer
    x = 106,042.86

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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.