Home / 106,411.51-159,618.84-31,539.25

Finding the Fourth Proportional to 106,411.51, 159,618.84 and 31,539.25

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Solution

The fourth proportional to 106,411.51, 159,618.84 and 31,539.25 is: 47,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,411.51 : 159,618.84 = 31,539.25 : x
  2. Step 2: Convert to fraction form
    106,411.51/159,618.84 = 31,539.25/x
  3. Step 3: Cross multiply
    106,411.51x = 159,618.84 × 31,539.25
  4. Step 4: Simplify right side
    106,411.51x = 5,034,258,499.47
  5. Step 5: Solve for x
    x = 5,034,258,499.47/106,411.51
  6. Step 6: Final answer
    x = 47,309.34

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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.