Home / 134,742.15-185,943.87-81,058.32

Finding the Fourth Proportional to 134,742.15, 185,943.87 and 81,058.32

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Solution

The fourth proportional to 134,742.15, 185,943.87 and 81,058.32 is: 111,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,742.15 : 185,943.87 = 81,058.32 : x
  2. Step 2: Convert to fraction form
    134,742.15/185,943.87 = 81,058.32/x
  3. Step 3: Cross multiply
    134,742.15x = 185,943.87 × 81,058.32
  4. Step 4: Simplify right side
    134,742.15x = 15,072,297,716.50
  5. Step 5: Solve for x
    x = 15,072,297,716.50/134,742.15
  6. Step 6: Final answer
    x = 111,860.30

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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.