Home / 129,179.05-193,664.01-40,386.85

Finding the Fourth Proportional to 129,179.05, 193,664.01 and 40,386.85

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Solution

The fourth proportional to 129,179.05, 193,664.01 and 40,386.85 is: 60,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,179.05 : 193,664.01 = 40,386.85 : x
  2. Step 2: Convert to fraction form
    129,179.05/193,664.01 = 40,386.85/x
  3. Step 3: Cross multiply
    129,179.05x = 193,664.01 × 40,386.85
  4. Step 4: Simplify right side
    129,179.05x = 7,821,479,322.27
  5. Step 5: Solve for x
    x = 7,821,479,322.27/129,179.05
  6. Step 6: Final answer
    x = 60,547.58

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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.