Home / 132,111.73-182,361.48-78,396.75

Finding the Fourth Proportional to 132,111.73, 182,361.48 and 78,396.75

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Solution

The fourth proportional to 132,111.73, 182,361.48 and 78,396.75 is: 108,215.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,111.73 : 182,361.48 = 78,396.75 : x
  2. Step 2: Convert to fraction form
    132,111.73/182,361.48 = 78,396.75/x
  3. Step 3: Cross multiply
    132,111.73x = 182,361.48 × 78,396.75
  4. Step 4: Simplify right side
    132,111.73x = 14,296,547,063.20
  5. Step 5: Solve for x
    x = 14,296,547,063.20/132,111.73
  6. Step 6: Final answer
    x = 108,215.58

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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.