Home / 112,014.56-154,580-61,713.56

Finding the Fourth Proportional to 112,014.56, 154,580 and 61,713.56

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Solution

The fourth proportional to 112,014.56, 154,580 and 61,713.56 is: 85,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,014.56 : 154,580 = 61,713.56 : x
  2. Step 2: Convert to fraction form
    112,014.56/154,580 = 61,713.56/x
  3. Step 3: Cross multiply
    112,014.56x = 154,580 × 61,713.56
  4. Step 4: Simplify right side
    112,014.56x = 9,539,682,104.80
  5. Step 5: Solve for x
    x = 9,539,682,104.80/112,014.56
  6. Step 6: Final answer
    x = 85,164.66

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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.