Home / 132,696.12-183,158.10-87,408.48

Finding the Fourth Proportional to 132,696.12, 183,158.10 and 87,408.48

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Solution

The fourth proportional to 132,696.12, 183,158.10 and 87,408.48 is: 120,648.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,696.12 : 183,158.10 = 87,408.48 : x
  2. Step 2: Convert to fraction form
    132,696.12/183,158.10 = 87,408.48/x
  3. Step 3: Cross multiply
    132,696.12x = 183,158.10 × 87,408.48
  4. Step 4: Simplify right side
    132,696.12x = 16,009,571,120.69
  5. Step 5: Solve for x
    x = 16,009,571,120.69/132,696.12
  6. Step 6: Final answer
    x = 120,648.37

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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.