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Finding the Fourth Proportional to 127,079.74, 175,375.53 and 76,100.77

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Solution

The fourth proportional to 127,079.74, 175,375.53 and 76,100.77 is: 105,022.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,079.74 : 175,375.53 = 76,100.77 : x
  2. Step 2: Convert to fraction form
    127,079.74/175,375.53 = 76,100.77/x
  3. Step 3: Cross multiply
    127,079.74x = 175,375.53 × 76,100.77
  4. Step 4: Simplify right side
    127,079.74x = 13,346,212,104.89
  5. Step 5: Solve for x
    x = 13,346,212,104.89/127,079.74
  6. Step 6: Final answer
    x = 105,022.35

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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.