Home / 119,635.20-179,625.60-90,259.20

Finding the Fourth Proportional to 119,635.20, 179,625.60 and 90,259.20

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Solution

The fourth proportional to 119,635.20, 179,625.60 and 90,259.20 is: 135,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,635.20 : 179,625.60 = 90,259.20 : x
  2. Step 2: Convert to fraction form
    119,635.20/179,625.60 = 90,259.20/x
  3. Step 3: Cross multiply
    119,635.20x = 179,625.60 × 90,259.20
  4. Step 4: Simplify right side
    119,635.20x = 16,212,862,955.52
  5. Step 5: Solve for x
    x = 16,212,862,955.52/119,635.20
  6. Step 6: Final answer
    x = 135,519.17

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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.