Home / 131,880.41-181,994.72-71,452.56

Finding the Fourth Proportional to 131,880.41, 181,994.72 and 71,452.56

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Solution

The fourth proportional to 131,880.41, 181,994.72 and 71,452.56 is: 98,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,880.41 : 181,994.72 = 71,452.56 : x
  2. Step 2: Convert to fraction form
    131,880.41/181,994.72 = 71,452.56/x
  3. Step 3: Cross multiply
    131,880.41x = 181,994.72 × 71,452.56
  4. Step 4: Simplify right side
    131,880.41x = 13,003,988,829.11
  5. Step 5: Solve for x
    x = 13,003,988,829.11/131,880.41
  6. Step 6: Final answer
    x = 98,604.40

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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.