Home / 129,106.95-178,117.70-95,195.69

Finding the Fourth Proportional to 129,106.95, 178,117.70 and 95,195.69

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Solution

The fourth proportional to 129,106.95, 178,117.70 and 95,195.69 is: 131,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,106.95 : 178,117.70 = 95,195.69 : x
  2. Step 2: Convert to fraction form
    129,106.95/178,117.70 = 95,195.69/x
  3. Step 3: Cross multiply
    129,106.95x = 178,117.70 × 95,195.69
  4. Step 4: Simplify right side
    129,106.95x = 16,956,037,322.03
  5. Step 5: Solve for x
    x = 16,956,037,322.03/129,106.95
  6. Step 6: Final answer
    x = 131,333.27

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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.