Home / 136,303.32-188,086.14-79,704.84

Finding the Fourth Proportional to 136,303.32, 188,086.14 and 79,704.84

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Solution

The fourth proportional to 136,303.32, 188,086.14 and 79,704.84 is: 109,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,303.32 : 188,086.14 = 79,704.84 : x
  2. Step 2: Convert to fraction form
    136,303.32/188,086.14 = 79,704.84/x
  3. Step 3: Cross multiply
    136,303.32x = 188,086.14 × 79,704.84
  4. Step 4: Simplify right side
    136,303.32x = 14,991,375,694.92
  5. Step 5: Solve for x
    x = 14,991,375,694.92/136,303.32
  6. Step 6: Final answer
    x = 109,985.40

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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.