Home / 132,986.68-183,521.91-72,557.44

Finding the Fourth Proportional to 132,986.68, 183,521.91 and 72,557.44

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Solution

The fourth proportional to 132,986.68, 183,521.91 and 72,557.44 is: 100,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,986.68 : 183,521.91 = 72,557.44 : x
  2. Step 2: Convert to fraction form
    132,986.68/183,521.91 = 72,557.44/x
  3. Step 3: Cross multiply
    132,986.68x = 183,521.91 × 72,557.44
  4. Step 4: Simplify right side
    132,986.68x = 13,315,879,973.51
  5. Step 5: Solve for x
    x = 13,315,879,973.51/132,986.68
  6. Step 6: Final answer
    x = 100,129.43

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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.