Home / 132,319.91-182,630.34-81,376.46

Finding the Fourth Proportional to 132,319.91, 182,630.34 and 81,376.46

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Solution

The fourth proportional to 132,319.91, 182,630.34 and 81,376.46 is: 112,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,319.91 : 182,630.34 = 81,376.46 : x
  2. Step 2: Convert to fraction form
    132,319.91/182,630.34 = 81,376.46/x
  3. Step 3: Cross multiply
    132,319.91x = 182,630.34 × 81,376.46
  4. Step 4: Simplify right side
    132,319.91x = 14,861,811,014.37
  5. Step 5: Solve for x
    x = 14,861,811,014.37/132,319.91
  6. Step 6: Final answer
    x = 112,317.27

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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.