Home / 112,118.33-154,724.51-61,130.64

Finding the Fourth Proportional to 112,118.33, 154,724.51 and 61,130.64

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Solution

The fourth proportional to 112,118.33, 154,724.51 and 61,130.64 is: 84,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,118.33 : 154,724.51 = 61,130.64 : x
  2. Step 2: Convert to fraction form
    112,118.33/154,724.51 = 61,130.64/x
  3. Step 3: Cross multiply
    112,118.33x = 154,724.51 × 61,130.64
  4. Step 4: Simplify right side
    112,118.33x = 9,458,408,014.33
  5. Step 5: Solve for x
    x = 9,458,408,014.33/112,118.33
  6. Step 6: Final answer
    x = 84,360.94

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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.