Home / 132,675.28-183,076.44-78,977.68

Finding the Fourth Proportional to 132,675.28, 183,076.44 and 78,977.68

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Solution

The fourth proportional to 132,675.28, 183,076.44 and 78,977.68 is: 108,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,675.28 : 183,076.44 = 78,977.68 : x
  2. Step 2: Convert to fraction form
    132,675.28/183,076.44 = 78,977.68/x
  3. Step 3: Cross multiply
    132,675.28x = 183,076.44 × 78,977.68
  4. Step 4: Simplify right side
    132,675.28x = 14,458,952,493.86
  5. Step 5: Solve for x
    x = 14,458,952,493.86/132,675.28
  6. Step 6: Final answer
    x = 108,980.00

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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.