Home / 134,781.08-185,991.26-81,055.67

Finding the Fourth Proportional to 134,781.08, 185,991.26 and 81,055.67

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Solution

The fourth proportional to 134,781.08, 185,991.26 and 81,055.67 is: 111,852.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,781.08 : 185,991.26 = 81,055.67 : x
  2. Step 2: Convert to fraction form
    134,781.08/185,991.26 = 81,055.67/x
  3. Step 3: Cross multiply
    134,781.08x = 185,991.26 × 81,055.67
  4. Step 4: Simplify right side
    134,781.08x = 15,075,644,858.21
  5. Step 5: Solve for x
    x = 15,075,644,858.21/134,781.08
  6. Step 6: Final answer
    x = 111,852.83

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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.