Home / 132,381.44-182,712.97-78,656.13

Finding the Fourth Proportional to 132,381.44, 182,712.97 and 78,656.13

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Solution

The fourth proportional to 132,381.44, 182,712.97 and 78,656.13 is: 108,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,381.44 : 182,712.97 = 78,656.13 : x
  2. Step 2: Convert to fraction form
    132,381.44/182,712.97 = 78,656.13/x
  3. Step 3: Cross multiply
    132,381.44x = 182,712.97 × 78,656.13
  4. Step 4: Simplify right side
    132,381.44x = 14,371,493,814.16
  5. Step 5: Solve for x
    x = 14,371,493,814.16/132,381.44
  6. Step 6: Final answer
    x = 108,561.25

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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.