Home / 106,145.01-159,162.64-31,255.45

Finding the Fourth Proportional to 106,145.01, 159,162.64 and 31,255.45

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Solution

The fourth proportional to 106,145.01, 159,162.64 and 31,255.45 is: 46,867.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,145.01 : 159,162.64 = 31,255.45 : x
  2. Step 2: Convert to fraction form
    106,145.01/159,162.64 = 31,255.45/x
  3. Step 3: Cross multiply
    106,145.01x = 159,162.64 × 31,255.45
  4. Step 4: Simplify right side
    106,145.01x = 4,974,699,460.34
  5. Step 5: Solve for x
    x = 4,974,699,460.34/106,145.01
  6. Step 6: Final answer
    x = 46,867.01

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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.