Home / 136,438.22-188,290.40-76,008.83

Finding the Fourth Proportional to 136,438.22, 188,290.40 and 76,008.83

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Solution

The fourth proportional to 136,438.22, 188,290.40 and 76,008.83 is: 104,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438.22 : 188,290.40 = 76,008.83 : x
  2. Step 2: Convert to fraction form
    136,438.22/188,290.40 = 76,008.83/x
  3. Step 3: Cross multiply
    136,438.22x = 188,290.40 × 76,008.83
  4. Step 4: Simplify right side
    136,438.22x = 14,311,733,004.23
  5. Step 5: Solve for x
    x = 14,311,733,004.23/136,438.22
  6. Step 6: Final answer
    x = 104,895.34

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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.