Home / 113,761.51-170,509.37-85,591.04

Finding the Fourth Proportional to 113,761.51, 170,509.37 and 85,591.04

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Solution

The fourth proportional to 113,761.51, 170,509.37 and 85,591.04 is: 128,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,761.51 : 170,509.37 = 85,591.04 : x
  2. Step 2: Convert to fraction form
    113,761.51/170,509.37 = 85,591.04/x
  3. Step 3: Cross multiply
    113,761.51x = 170,509.37 × 85,591.04
  4. Step 4: Simplify right side
    113,761.51x = 14,594,074,948.30
  5. Step 5: Solve for x
    x = 14,594,074,948.30/113,761.51
  6. Step 6: Final answer
    x = 128,286.58

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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.