Home / 127,976.44-176,577.42-77,665.72

Finding the Fourth Proportional to 127,976.44, 176,577.42 and 77,665.72

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Solution

The fourth proportional to 127,976.44, 176,577.42 and 77,665.72 is: 107,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,976.44 : 176,577.42 = 77,665.72 : x
  2. Step 2: Convert to fraction form
    127,976.44/176,577.42 = 77,665.72/x
  3. Step 3: Cross multiply
    127,976.44x = 176,577.42 × 77,665.72
  4. Step 4: Simplify right side
    127,976.44x = 13,714,012,460.04
  5. Step 5: Solve for x
    x = 13,714,012,460.04/127,976.44
  6. Step 6: Final answer
    x = 107,160.45

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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.