Home / 148,820.19-205,371.75-80,837.29

Finding the Fourth Proportional to 148,820.19, 205,371.75 and 80,837.29

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Solution

The fourth proportional to 148,820.19, 205,371.75 and 80,837.29 is: 111,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,820.19 : 205,371.75 = 80,837.29 : x
  2. Step 2: Convert to fraction form
    148,820.19/205,371.75 = 80,837.29/x
  3. Step 3: Cross multiply
    148,820.19x = 205,371.75 × 80,837.29
  4. Step 4: Simplify right side
    148,820.19x = 16,601,696,272.41
  5. Step 5: Solve for x
    x = 16,601,696,272.41/148,820.19
  6. Step 6: Final answer
    x = 111,555.41

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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.