Home / 132,882.16-183,379.80-72,453.28

Finding the Fourth Proportional to 132,882.16, 183,379.80 and 72,453.28

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Solution

The fourth proportional to 132,882.16, 183,379.80 and 72,453.28 is: 99,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,882.16 : 183,379.80 = 72,453.28 : x
  2. Step 2: Convert to fraction form
    132,882.16/183,379.80 = 72,453.28/x
  3. Step 3: Cross multiply
    132,882.16x = 183,379.80 × 72,453.28
  4. Step 4: Simplify right side
    132,882.16x = 13,286,467,995.74
  5. Step 5: Solve for x
    x = 13,286,467,995.74/132,882.16
  6. Step 6: Final answer
    x = 99,986.85

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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.