Home / 341,766.12-512,698.32-105,128.76

Finding the Fourth Proportional to 341,766.12, 512,698.32 and 105,128.76

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Solution

The fourth proportional to 341,766.12, 512,698.32 and 105,128.76 is: 157,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,766.12 : 512,698.32 = 105,128.76 : x
  2. Step 2: Convert to fraction form
    341,766.12/512,698.32 = 105,128.76/x
  3. Step 3: Cross multiply
    341,766.12x = 512,698.32 × 105,128.76
  4. Step 4: Simplify right side
    341,766.12x = 53,899,338,635.68
  5. Step 5: Solve for x
    x = 53,899,338,635.68/341,766.12
  6. Step 6: Final answer
    x = 157,708.26

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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.