Home / 135,438.72-186,812.59-92,923.44

Finding the Fourth Proportional to 135,438.72, 186,812.59 and 92,923.44

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Solution

The fourth proportional to 135,438.72, 186,812.59 and 92,923.44 is: 128,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,438.72 : 186,812.59 = 92,923.44 : x
  2. Step 2: Convert to fraction form
    135,438.72/186,812.59 = 92,923.44/x
  3. Step 3: Cross multiply
    135,438.72x = 186,812.59 × 92,923.44
  4. Step 4: Simplify right side
    135,438.72x = 17,359,268,498.11
  5. Step 5: Solve for x
    x = 17,359,268,498.11/135,438.72
  6. Step 6: Final answer
    x = 128,170.65

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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.