Home / 136,429.58-188,278.49-76,000.22

Finding the Fourth Proportional to 136,429.58, 188,278.49 and 76,000.22

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Solution

The fourth proportional to 136,429.58, 188,278.49 and 76,000.22 is: 104,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,429.58 : 188,278.49 = 76,000.22 : x
  2. Step 2: Convert to fraction form
    136,429.58/188,278.49 = 76,000.22/x
  3. Step 3: Cross multiply
    136,429.58x = 188,278.49 × 76,000.22
  4. Step 4: Simplify right side
    136,429.58x = 14,309,205,339.87
  5. Step 5: Solve for x
    x = 14,309,205,339.87/136,429.58
  6. Step 6: Final answer
    x = 104,883.46

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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.