Home / 135,232.87-186,562.72-81,487.34

Finding the Fourth Proportional to 135,232.87, 186,562.72 and 81,487.34

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Solution

The fourth proportional to 135,232.87, 186,562.72 and 81,487.34 is: 112,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,232.87 : 186,562.72 = 81,487.34 : x
  2. Step 2: Convert to fraction form
    135,232.87/186,562.72 = 81,487.34/x
  3. Step 3: Cross multiply
    135,232.87x = 186,562.72 × 81,487.34
  4. Step 4: Simplify right side
    135,232.87x = 15,202,499,388.53
  5. Step 5: Solve for x
    x = 15,202,499,388.53/135,232.87
  6. Step 6: Final answer
    x = 112,417.20

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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.