Home / 132,644.88-183,065.81-78,209.37

Finding the Fourth Proportional to 132,644.88, 183,065.81 and 78,209.37

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Solution

The fourth proportional to 132,644.88, 183,065.81 and 78,209.37 is: 107,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,644.88 : 183,065.81 = 78,209.37 : x
  2. Step 2: Convert to fraction form
    132,644.88/183,065.81 = 78,209.37/x
  3. Step 3: Cross multiply
    132,644.88x = 183,065.81 × 78,209.37
  4. Step 4: Simplify right side
    132,644.88x = 14,317,461,277.59
  5. Step 5: Solve for x
    x = 14,317,461,277.59/132,644.88
  6. Step 6: Final answer
    x = 107,938.29

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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.