Home / 136,916.58-188,926.23-76,479.54

Finding the Fourth Proportional to 136,916.58, 188,926.23 and 76,479.54

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Solution

The fourth proportional to 136,916.58, 188,926.23 and 76,479.54 is: 105,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,916.58 : 188,926.23 = 76,479.54 : x
  2. Step 2: Convert to fraction form
    136,916.58/188,926.23 = 76,479.54/x
  3. Step 3: Cross multiply
    136,916.58x = 188,926.23 × 76,479.54
  4. Step 4: Simplify right side
    136,916.58x = 14,448,991,164.33
  5. Step 5: Solve for x
    x = 14,448,991,164.33/136,916.58
  6. Step 6: Final answer
    x = 105,531.35

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1.5x scale

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.