Home / 120,386.16-180,754.20-88,893.36

Finding the Fourth Proportional to 120,386.16, 180,754.20 and 88,893.36

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Solution

The fourth proportional to 120,386.16, 180,754.20 and 88,893.36 is: 133,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,386.16 : 180,754.20 = 88,893.36 : x
  2. Step 2: Convert to fraction form
    120,386.16/180,754.20 = 88,893.36/x
  3. Step 3: Cross multiply
    120,386.16x = 180,754.20 × 88,893.36
  4. Step 4: Simplify right side
    120,386.16x = 16,067,848,172.11
  5. Step 5: Solve for x
    x = 16,067,848,172.11/120,386.16
  6. Step 6: Final answer
    x = 133,469.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.