Home / 132,157.08-182,433.60-81,178.11

Finding the Fourth Proportional to 132,157.08, 182,433.60 and 81,178.11

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Solution

The fourth proportional to 132,157.08, 182,433.60 and 81,178.11 is: 112,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,157.08 : 182,433.60 = 81,178.11 : x
  2. Step 2: Convert to fraction form
    132,157.08/182,433.60 = 81,178.11/x
  3. Step 3: Cross multiply
    132,157.08x = 182,433.60 × 81,178.11
  4. Step 4: Simplify right side
    132,157.08x = 14,809,614,848.50
  5. Step 5: Solve for x
    x = 14,809,614,848.50/132,157.08
  6. Step 6: Final answer
    x = 112,060.70

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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.