Home / 132,417.18-182,788.65-81,450.56

Finding the Fourth Proportional to 132,417.18, 182,788.65 and 81,450.56

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Solution

The fourth proportional to 132,417.18, 182,788.65 and 81,450.56 is: 112,434.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,417.18 : 182,788.65 = 81,450.56 : x
  2. Step 2: Convert to fraction form
    132,417.18/182,788.65 = 81,450.56/x
  3. Step 3: Cross multiply
    132,417.18x = 182,788.65 × 81,450.56
  4. Step 4: Simplify right side
    132,417.18x = 14,888,238,361.12
  5. Step 5: Solve for x
    x = 14,888,238,361.12/132,417.18
  6. Step 6: Final answer
    x = 112,434.34

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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.