Home / 115,869.15-159,816.92-106,339.77

Finding the Fourth Proportional to 115,869.15, 159,816.92 and 106,339.77

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Solution

The fourth proportional to 115,869.15, 159,816.92 and 106,339.77 is: 146,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,869.15 : 159,816.92 = 106,339.77 : x
  2. Step 2: Convert to fraction form
    115,869.15/159,816.92 = 106,339.77/x
  3. Step 3: Cross multiply
    115,869.15x = 159,816.92 × 106,339.77
  4. Step 4: Simplify right side
    115,869.15x = 16,994,893,983.21
  5. Step 5: Solve for x
    x = 16,994,893,983.21/115,869.15
  6. Step 6: Final answer
    x = 146,673.16

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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.