Home / 131,143.98-180,994.05-74,563.86

Finding the Fourth Proportional to 131,143.98, 180,994.05 and 74,563.86

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Solution

The fourth proportional to 131,143.98, 180,994.05 and 74,563.86 is: 102,906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,143.98 : 180,994.05 = 74,563.86 : x
  2. Step 2: Convert to fraction form
    131,143.98/180,994.05 = 74,563.86/x
  3. Step 3: Cross multiply
    131,143.98x = 180,994.05 × 74,563.86
  4. Step 4: Simplify right side
    131,143.98x = 13,495,615,005.03
  5. Step 5: Solve for x
    x = 13,495,615,005.03/131,143.98
  6. Step 6: Final answer
    x = 102,906.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.