Home / 148,329.63-204,686.19-87,906.06

Finding the Fourth Proportional to 148,329.63, 204,686.19 and 87,906.06

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Solution

The fourth proportional to 148,329.63, 204,686.19 and 87,906.06 is: 121,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,329.63 : 204,686.19 = 87,906.06 : x
  2. Step 2: Convert to fraction form
    148,329.63/204,686.19 = 87,906.06/x
  3. Step 3: Cross multiply
    148,329.63x = 204,686.19 × 87,906.06
  4. Step 4: Simplify right side
    148,329.63x = 17,993,156,499.31
  5. Step 5: Solve for x
    x = 17,993,156,499.31/148,329.63
  6. Step 6: Final answer
    x = 121,305.21

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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.