Home / 134,968.96-186,249-81,271.36

Finding the Fourth Proportional to 134,968.96, 186,249 and 81,271.36

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Solution

The fourth proportional to 134,968.96, 186,249 and 81,271.36 is: 112,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,968.96 : 186,249 = 81,271.36 : x
  2. Step 2: Convert to fraction form
    134,968.96/186,249 = 81,271.36/x
  3. Step 3: Cross multiply
    134,968.96x = 186,249 × 81,271.36
  4. Step 4: Simplify right side
    134,968.96x = 15,136,709,528.64
  5. Step 5: Solve for x
    x = 15,136,709,528.64/134,968.96
  6. Step 6: Final answer
    x = 112,149.56

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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.