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Finding the Fourth Proportional to 132,344.66, 182,615.10 and 78,628.32

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Solution

The fourth proportional to 132,344.66, 182,615.10 and 78,628.32 is: 108,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,344.66 : 182,615.10 = 78,628.32 : x
  2. Step 2: Convert to fraction form
    132,344.66/182,615.10 = 78,628.32/x
  3. Step 3: Cross multiply
    132,344.66x = 182,615.10 × 78,628.32
  4. Step 4: Simplify right side
    132,344.66x = 14,358,718,519.63
  5. Step 5: Solve for x
    x = 14,358,718,519.63/132,344.66
  6. Step 6: Final answer
    x = 108,494.88

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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.