Home / 101,815.56-140,506.09-56,494.43

Finding the Fourth Proportional to 101,815.56, 140,506.09 and 56,494.43

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Solution

The fourth proportional to 101,815.56, 140,506.09 and 56,494.43 is: 77,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,815.56 : 140,506.09 = 56,494.43 : x
  2. Step 2: Convert to fraction form
    101,815.56/140,506.09 = 56,494.43/x
  3. Step 3: Cross multiply
    101,815.56x = 140,506.09 × 56,494.43
  4. Step 4: Simplify right side
    101,815.56x = 7,937,811,466.08
  5. Step 5: Solve for x
    x = 7,937,811,466.08/101,815.56
  6. Step 6: Final answer
    x = 77,962.66

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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.