Home / 135,058.32-186,382.49-74,630.36

Finding the Fourth Proportional to 135,058.32, 186,382.49 and 74,630.36

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Solution

The fourth proportional to 135,058.32, 186,382.49 and 74,630.36 is: 102,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,058.32 : 186,382.49 = 74,630.36 : x
  2. Step 2: Convert to fraction form
    135,058.32/186,382.49 = 74,630.36/x
  3. Step 3: Cross multiply
    135,058.32x = 186,382.49 × 74,630.36
  4. Step 4: Simplify right side
    135,058.32x = 13,909,792,419.20
  5. Step 5: Solve for x
    x = 13,909,792,419.20/135,058.32
  6. Step 6: Final answer
    x = 102,991.01

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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.