Home / 106,405.95-159,632.28-31,531.96

Finding the Fourth Proportional to 106,405.95, 159,632.28 and 31,531.96

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Solution

The fourth proportional to 106,405.95, 159,632.28 and 31,531.96 is: 47,304.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,405.95 : 159,632.28 = 31,531.96 : x
  2. Step 2: Convert to fraction form
    106,405.95/159,632.28 = 31,531.96/x
  3. Step 3: Cross multiply
    106,405.95x = 159,632.28 × 31,531.96
  4. Step 4: Simplify right side
    106,405.95x = 5,033,518,462.59
  5. Step 5: Solve for x
    x = 5,033,518,462.59/106,405.95
  6. Step 6: Final answer
    x = 47,304.86

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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.