Home / 109,720.31-164,563.65-34,830.68

Finding the Fourth Proportional to 109,720.31, 164,563.65 and 34,830.68

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Solution

The fourth proportional to 109,720.31, 164,563.65 and 34,830.68 is: 52,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,720.31 : 164,563.65 = 34,830.68 : x
  2. Step 2: Convert to fraction form
    109,720.31/164,563.65 = 34,830.68/x
  3. Step 3: Cross multiply
    109,720.31x = 164,563.65 × 34,830.68
  4. Step 4: Simplify right side
    109,720.31x = 5,731,863,009.96
  5. Step 5: Solve for x
    x = 5,731,863,009.96/109,720.31
  6. Step 6: Final answer
    x = 52,240.68

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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.