Home / 119,539.84-179,340-85,844.56

Finding the Fourth Proportional to 119,539.84, 179,340 and 85,844.56

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Solution

The fourth proportional to 119,539.84, 179,340 and 85,844.56 is: 128,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,539.84 : 179,340 = 85,844.56 : x
  2. Step 2: Convert to fraction form
    119,539.84/179,340 = 85,844.56/x
  3. Step 3: Cross multiply
    119,539.84x = 179,340 × 85,844.56
  4. Step 4: Simplify right side
    119,539.84x = 15,395,363,390.40
  5. Step 5: Solve for x
    x = 15,395,363,390.40/119,539.84
  6. Step 6: Final answer
    x = 128,788.56

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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.