Home / 207,730.56-286,661.38-131,290.68

Finding the Fourth Proportional to 207,730.56, 286,661.38 and 131,290.68

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Solution

The fourth proportional to 207,730.56, 286,661.38 and 131,290.68 is: 181,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,730.56 : 286,661.38 = 131,290.68 : x
  2. Step 2: Convert to fraction form
    207,730.56/286,661.38 = 131,290.68/x
  3. Step 3: Cross multiply
    207,730.56x = 286,661.38 × 131,290.68
  4. Step 4: Simplify right side
    207,730.56x = 37,635,967,509.94
  5. Step 5: Solve for x
    x = 37,635,967,509.94/207,730.56
  6. Step 6: Final answer
    x = 181,176.85

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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.