Home / 133,070.40-183,676.08-87,137.04

Finding the Fourth Proportional to 133,070.40, 183,676.08 and 87,137.04

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Solution

The fourth proportional to 133,070.40, 183,676.08 and 87,137.04 is: 120,274.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,070.40 : 183,676.08 = 87,137.04 : x
  2. Step 2: Convert to fraction form
    133,070.40/183,676.08 = 87,137.04/x
  3. Step 3: Cross multiply
    133,070.40x = 183,676.08 × 87,137.04
  4. Step 4: Simplify right side
    133,070.40x = 16,004,989,930.00
  5. Step 5: Solve for x
    x = 16,004,989,930.00/133,070.40
  6. Step 6: Final answer
    x = 120,274.61

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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.