Home / 113,760.07-170,501.76-80,489.74

Finding the Fourth Proportional to 113,760.07, 170,501.76 and 80,489.74

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Solution

The fourth proportional to 113,760.07, 170,501.76 and 80,489.74 is: 120,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,760.07 : 170,501.76 = 80,489.74 : x
  2. Step 2: Convert to fraction form
    113,760.07/170,501.76 = 80,489.74/x
  3. Step 3: Cross multiply
    113,760.07x = 170,501.76 × 80,489.74
  4. Step 4: Simplify right side
    113,760.07x = 13,723,642,331.94
  5. Step 5: Solve for x
    x = 13,723,642,331.94/113,760.07
  6. Step 6: Final answer
    x = 120,636.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.