Home / 127,117.10-190,894.35-82,939.70

Finding the Fourth Proportional to 127,117.10, 190,894.35 and 82,939.70

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Solution

The fourth proportional to 127,117.10, 190,894.35 and 82,939.70 is: 124,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,117.10 : 190,894.35 = 82,939.70 : x
  2. Step 2: Convert to fraction form
    127,117.10/190,894.35 = 82,939.70/x
  3. Step 3: Cross multiply
    127,117.10x = 190,894.35 × 82,939.70
  4. Step 4: Simplify right side
    127,117.10x = 15,832,720,120.70
  5. Step 5: Solve for x
    x = 15,832,720,120.70/127,117.10
  6. Step 6: Final answer
    x = 124,552.24

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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.