Home / 132,544.43-182,905.86-72,115.32

Finding the Fourth Proportional to 132,544.43, 182,905.86 and 72,115.32

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Solution

The fourth proportional to 132,544.43, 182,905.86 and 72,115.32 is: 99,516.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,544.43 : 182,905.86 = 72,115.32 : x
  2. Step 2: Convert to fraction form
    132,544.43/182,905.86 = 72,115.32/x
  3. Step 3: Cross multiply
    132,544.43x = 182,905.86 × 72,115.32
  4. Step 4: Simplify right side
    132,544.43x = 13,190,314,145.61
  5. Step 5: Solve for x
    x = 13,190,314,145.61/132,544.43
  6. Step 6: Final answer
    x = 99,516.17

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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.