Home / 112,579.38-168,681.65-79,229.39

Finding the Fourth Proportional to 112,579.38, 168,681.65 and 79,229.39

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Solution

The fourth proportional to 112,579.38, 168,681.65 and 79,229.39 is: 118,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,579.38 : 168,681.65 = 79,229.39 : x
  2. Step 2: Convert to fraction form
    112,579.38/168,681.65 = 79,229.39/x
  3. Step 3: Cross multiply
    112,579.38x = 168,681.65 × 79,229.39
  4. Step 4: Simplify right side
    112,579.38x = 13,364,542,994.14
  5. Step 5: Solve for x
    x = 13,364,542,994.14/112,579.38
  6. Step 6: Final answer
    x = 118,712.17

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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.