Home / 132,661.88-183,069.18-78,934.60

Finding the Fourth Proportional to 132,661.88, 183,069.18 and 78,934.60

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Solution

The fourth proportional to 132,661.88, 183,069.18 and 78,934.60 is: 108,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,661.88 : 183,069.18 = 78,934.60 : x
  2. Step 2: Convert to fraction form
    132,661.88/183,069.18 = 78,934.60/x
  3. Step 3: Cross multiply
    132,661.88x = 183,069.18 × 78,934.60
  4. Step 4: Simplify right side
    132,661.88x = 14,450,492,495.63
  5. Step 5: Solve for x
    x = 14,450,492,495.63/132,661.88
  6. Step 6: Final answer
    x = 108,927.24

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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.