Home / 120,165.36-179,985.36-60,899.28

Finding the Fourth Proportional to 120,165.36, 179,985.36 and 60,899.28

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Solution

The fourth proportional to 120,165.36, 179,985.36 and 60,899.28 is: 91,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,165.36 : 179,985.36 = 60,899.28 : x
  2. Step 2: Convert to fraction form
    120,165.36/179,985.36 = 60,899.28/x
  3. Step 3: Cross multiply
    120,165.36x = 179,985.36 × 60,899.28
  4. Step 4: Simplify right side
    120,165.36x = 10,960,978,834.54
  5. Step 5: Solve for x
    x = 10,960,978,834.54/120,165.36
  6. Step 6: Final answer
    x = 91,215.79

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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.