Home / 106,250.63-159,405.05-31,370.75

Finding the Fourth Proportional to 106,250.63, 159,405.05 and 31,370.75

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Solution

The fourth proportional to 106,250.63, 159,405.05 and 31,370.75 is: 47,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,250.63 : 159,405.05 = 31,370.75 : x
  2. Step 2: Convert to fraction form
    106,250.63/159,405.05 = 31,370.75/x
  3. Step 3: Cross multiply
    106,250.63x = 159,405.05 × 31,370.75
  4. Step 4: Simplify right side
    106,250.63x = 5,000,655,972.29
  5. Step 5: Solve for x
    x = 5,000,655,972.29/106,250.63
  6. Step 6: Final answer
    x = 47,064.72

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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.