Home / 135,303.37-186,720.33-74,873.86

Finding the Fourth Proportional to 135,303.37, 186,720.33 and 74,873.86

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Solution

The fourth proportional to 135,303.37, 186,720.33 and 74,873.86 is: 103,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,303.37 : 186,720.33 = 74,873.86 : x
  2. Step 2: Convert to fraction form
    135,303.37/186,720.33 = 74,873.86/x
  3. Step 3: Cross multiply
    135,303.37x = 186,720.33 × 74,873.86
  4. Step 4: Simplify right side
    135,303.37x = 13,980,471,847.57
  5. Step 5: Solve for x
    x = 13,980,471,847.57/135,303.37
  6. Step 6: Final answer
    x = 103,326.86

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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.