Home / 112,179.88-154,809.06-61,880.68

Finding the Fourth Proportional to 112,179.88, 154,809.06 and 61,880.68

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Solution

The fourth proportional to 112,179.88, 154,809.06 and 61,880.68 is: 85,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,179.88 : 154,809.06 = 61,880.68 : x
  2. Step 2: Convert to fraction form
    112,179.88/154,809.06 = 61,880.68/x
  3. Step 3: Cross multiply
    112,179.88x = 154,809.06 × 61,880.68
  4. Step 4: Simplify right side
    112,179.88x = 9,579,689,902.96
  5. Step 5: Solve for x
    x = 9,579,689,902.96/112,179.88
  6. Step 6: Final answer
    x = 85,395.79

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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.