Home / 127,185.15-175,516.19-79,466.18

Finding the Fourth Proportional to 127,185.15, 175,516.19 and 79,466.18

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Solution

The fourth proportional to 127,185.15, 175,516.19 and 79,466.18 is: 109,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,185.15 : 175,516.19 = 79,466.18 : x
  2. Step 2: Convert to fraction form
    127,185.15/175,516.19 = 79,466.18/x
  3. Step 3: Cross multiply
    127,185.15x = 175,516.19 × 79,466.18
  4. Step 4: Simplify right side
    127,185.15x = 13,947,599,872.54
  5. Step 5: Solve for x
    x = 13,947,599,872.54/127,185.15
  6. Step 6: Final answer
    x = 109,663.75

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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.