Home / 106,117.86-159,186.78-31,238.04

Finding the Fourth Proportional to 106,117.86, 159,186.78 and 31,238.04

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Solution

The fourth proportional to 106,117.86, 159,186.78 and 31,238.04 is: 46,860.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,117.86 : 159,186.78 = 31,238.04 : x
  2. Step 2: Convert to fraction form
    106,117.86/159,186.78 = 31,238.04/x
  3. Step 3: Cross multiply
    106,117.86x = 159,186.78 × 31,238.04
  4. Step 4: Simplify right side
    106,117.86x = 4,972,683,001.11
  5. Step 5: Solve for x
    x = 4,972,683,001.11/106,117.86
  6. Step 6: Final answer
    x = 46,860.00

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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.