Home / 130,960.19-180,726.32-74,371.97

Finding the Fourth Proportional to 130,960.19, 180,726.32 and 74,371.97

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Solution

The fourth proportional to 130,960.19, 180,726.32 and 74,371.97 is: 102,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,960.19 : 180,726.32 = 74,371.97 : x
  2. Step 2: Convert to fraction form
    130,960.19/180,726.32 = 74,371.97/x
  3. Step 3: Cross multiply
    130,960.19x = 180,726.32 × 74,371.97
  4. Step 4: Simplify right side
    130,960.19x = 13,440,972,077.39
  5. Step 5: Solve for x
    x = 13,440,972,077.39/130,960.19
  6. Step 6: Final answer
    x = 102,634.03

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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.