Home / 127,220.10-190,879.92-38,482.56

Finding the Fourth Proportional to 127,220.10, 190,879.92 and 38,482.56

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Solution

The fourth proportional to 127,220.10, 190,879.92 and 38,482.56 is: 57,738.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,220.10 : 190,879.92 = 38,482.56 : x
  2. Step 2: Convert to fraction form
    127,220.10/190,879.92 = 38,482.56/x
  3. Step 3: Cross multiply
    127,220.10x = 190,879.92 × 38,482.56
  4. Step 4: Simplify right side
    127,220.10x = 7,345,547,974.20
  5. Step 5: Solve for x
    x = 7,345,547,974.20/127,220.10
  6. Step 6: Final answer
    x = 57,738.89

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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.