Home / 132,678.81-183,096.77-72,249.44

Finding the Fourth Proportional to 132,678.81, 183,096.77 and 72,249.44

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Solution

The fourth proportional to 132,678.81, 183,096.77 and 72,249.44 is: 99,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,678.81 : 183,096.77 = 72,249.44 : x
  2. Step 2: Convert to fraction form
    132,678.81/183,096.77 = 72,249.44/x
  3. Step 3: Cross multiply
    132,678.81x = 183,096.77 × 72,249.44
  4. Step 4: Simplify right side
    132,678.81x = 13,228,637,821.58
  5. Step 5: Solve for x
    x = 13,228,637,821.58/132,678.81
  6. Step 6: Final answer
    x = 99,704.22

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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.