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Finding the Fourth Proportional to 132,348.52, 182,736.32 and 81,429.76

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Solution

The fourth proportional to 132,348.52, 182,736.32 and 81,429.76 is: 112,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,348.52 : 182,736.32 = 81,429.76 : x
  2. Step 2: Convert to fraction form
    132,348.52/182,736.32 = 81,429.76/x
  3. Step 3: Cross multiply
    132,348.52x = 182,736.32 × 81,429.76
  4. Step 4: Simplify right side
    132,348.52x = 14,880,174,680.88
  5. Step 5: Solve for x
    x = 14,880,174,680.88/132,348.52
  6. Step 6: Final answer
    x = 112,431.74

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1.5x scale

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.