Home / 135,112.80-186,502.32-92,811.36

Finding the Fourth Proportional to 135,112.80, 186,502.32 and 92,811.36

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Solution

The fourth proportional to 135,112.80, 186,502.32 and 92,811.36 is: 128,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,112.80 : 186,502.32 = 92,811.36 : x
  2. Step 2: Convert to fraction form
    135,112.80/186,502.32 = 92,811.36/x
  3. Step 3: Cross multiply
    135,112.80x = 186,502.32 × 92,811.36
  4. Step 4: Simplify right side
    135,112.80x = 17,309,533,962.36
  5. Step 5: Solve for x
    x = 17,309,533,962.36/135,112.80
  6. Step 6: Final answer
    x = 128,111.73

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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.