Home / 101,986.40-140,721.36-59,546.72

Finding the Fourth Proportional to 101,986.40, 140,721.36 and 59,546.72

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Solution

The fourth proportional to 101,986.40, 140,721.36 and 59,546.72 is: 82,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,986.40 : 140,721.36 = 59,546.72 : x
  2. Step 2: Convert to fraction form
    101,986.40/140,721.36 = 59,546.72/x
  3. Step 3: Cross multiply
    101,986.40x = 140,721.36 × 59,546.72
  4. Step 4: Simplify right side
    101,986.40x = 8,379,495,421.94
  5. Step 5: Solve for x
    x = 8,379,495,421.94/101,986.40
  6. Step 6: Final answer
    x = 82,162.87

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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.