Home / 129,011.80-193,080.30-113,265.40

Finding the Fourth Proportional to 129,011.80, 193,080.30 and 113,265.40

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Solution

The fourth proportional to 129,011.80, 193,080.30 and 113,265.40 is: 169,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,011.80 : 193,080.30 = 113,265.40 : x
  2. Step 2: Convert to fraction form
    129,011.80/193,080.30 = 113,265.40/x
  3. Step 3: Cross multiply
    129,011.80x = 193,080.30 × 113,265.40
  4. Step 4: Simplify right side
    129,011.80x = 21,869,317,411.62
  5. Step 5: Solve for x
    x = 21,869,317,411.62/129,011.80
  6. Step 6: Final answer
    x = 169,514.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.