Home / 101,962.85-140,731.23-56,656.40

Finding the Fourth Proportional to 101,962.85, 140,731.23 and 56,656.40

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Solution

The fourth proportional to 101,962.85, 140,731.23 and 56,656.40 is: 78,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,962.85 : 140,731.23 = 56,656.40 : x
  2. Step 2: Convert to fraction form
    101,962.85/140,731.23 = 56,656.40/x
  3. Step 3: Cross multiply
    101,962.85x = 140,731.23 × 56,656.40
  4. Step 4: Simplify right side
    101,962.85x = 7,973,324,576.09
  5. Step 5: Solve for x
    x = 7,973,324,576.09/101,962.85
  6. Step 6: Final answer
    x = 78,198.33

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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.