Home / 106,505.10-159,701.85-31,615.02

Finding the Fourth Proportional to 106,505.10, 159,701.85 and 31,615.02

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Solution

The fourth proportional to 106,505.10, 159,701.85 and 31,615.02 is: 47,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,505.10 : 159,701.85 = 31,615.02 : x
  2. Step 2: Convert to fraction form
    106,505.10/159,701.85 = 31,615.02/x
  3. Step 3: Cross multiply
    106,505.10x = 159,701.85 × 31,615.02
  4. Step 4: Simplify right side
    106,505.10x = 5,048,977,181.79
  5. Step 5: Solve for x
    x = 5,048,977,181.79/106,505.10
  6. Step 6: Final answer
    x = 47,405.97

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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.