Home / 136,496.28-188,339.94-76,065.42

Finding the Fourth Proportional to 136,496.28, 188,339.94 and 76,065.42

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Solution

The fourth proportional to 136,496.28, 188,339.94 and 76,065.42 is: 104,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,496.28 : 188,339.94 = 76,065.42 : x
  2. Step 2: Convert to fraction form
    136,496.28/188,339.94 = 76,065.42/x
  3. Step 3: Cross multiply
    136,496.28x = 188,339.94 × 76,065.42
  4. Step 4: Simplify right side
    136,496.28x = 14,326,156,638.87
  5. Step 5: Solve for x
    x = 14,326,156,638.87/136,496.28
  6. Step 6: Final answer
    x = 104,956.39

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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.