Home / 106,455.09-159,363.63-102,669.87

Finding the Fourth Proportional to 106,455.09, 159,363.63 and 102,669.87

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Solution

The fourth proportional to 106,455.09, 159,363.63 and 102,669.87 is: 153,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,455.09 : 159,363.63 = 102,669.87 : x
  2. Step 2: Convert to fraction form
    106,455.09/159,363.63 = 102,669.87/x
  3. Step 3: Cross multiply
    106,455.09x = 159,363.63 × 102,669.87
  4. Step 4: Simplify right side
    106,455.09x = 16,361,843,174.83
  5. Step 5: Solve for x
    x = 16,361,843,174.83/106,455.09
  6. Step 6: Final answer
    x = 153,697.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.