Home / 135,577.76-187,102.10-81,852.28

Finding the Fourth Proportional to 135,577.76, 187,102.10 and 81,852.28

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Solution

The fourth proportional to 135,577.76, 187,102.10 and 81,852.28 is: 112,959.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,577.76 : 187,102.10 = 81,852.28 : x
  2. Step 2: Convert to fraction form
    135,577.76/187,102.10 = 81,852.28/x
  3. Step 3: Cross multiply
    135,577.76x = 187,102.10 × 81,852.28
  4. Step 4: Simplify right side
    135,577.76x = 15,314,733,214.66
  5. Step 5: Solve for x
    x = 15,314,733,214.66/135,577.76
  6. Step 6: Final answer
    x = 112,959.04

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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.