Home / 115,093.20-172,445.40-55,801.20

Finding the Fourth Proportional to 115,093.20, 172,445.40 and 55,801.20

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Solution

The fourth proportional to 115,093.20, 172,445.40 and 55,801.20 is: 83,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,093.20 : 172,445.40 = 55,801.20 : x
  2. Step 2: Convert to fraction form
    115,093.20/172,445.40 = 55,801.20/x
  3. Step 3: Cross multiply
    115,093.20x = 172,445.40 × 55,801.20
  4. Step 4: Simplify right side
    115,093.20x = 9,622,660,254.48
  5. Step 5: Solve for x
    x = 9,622,660,254.48/115,093.20
  6. Step 6: Final answer
    x = 83,607.55

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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.