Home / 137,346.23-189,515.88-76,919.42

Finding the Fourth Proportional to 137,346.23, 189,515.88 and 76,919.42

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Solution

The fourth proportional to 137,346.23, 189,515.88 and 76,919.42 is: 106,136.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,346.23 : 189,515.88 = 76,919.42 : x
  2. Step 2: Convert to fraction form
    137,346.23/189,515.88 = 76,919.42/x
  3. Step 3: Cross multiply
    137,346.23x = 189,515.88 × 76,919.42
  4. Step 4: Simplify right side
    137,346.23x = 14,577,450,622.81
  5. Step 5: Solve for x
    x = 14,577,450,622.81/137,346.23
  6. Step 6: Final answer
    x = 106,136.52

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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.