Home / 131,025.10-196,537.65-121,402.30

Finding the Fourth Proportional to 131,025.10, 196,537.65 and 121,402.30

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Solution

The fourth proportional to 131,025.10, 196,537.65 and 121,402.30 is: 182,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,025.10 : 196,537.65 = 121,402.30 : x
  2. Step 2: Convert to fraction form
    131,025.10/196,537.65 = 121,402.30/x
  3. Step 3: Cross multiply
    131,025.10x = 196,537.65 × 121,402.30
  4. Step 4: Simplify right side
    131,025.10x = 23,860,122,746.60
  5. Step 5: Solve for x
    x = 23,860,122,746.60/131,025.10
  6. Step 6: Final answer
    x = 182,103.45

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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.