Home / 132,268.90-182,509.75-81,265.22

Finding the Fourth Proportional to 132,268.90, 182,509.75 and 81,265.22

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Solution

The fourth proportional to 132,268.90, 182,509.75 and 81,265.22 is: 112,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,268.90 : 182,509.75 = 81,265.22 : x
  2. Step 2: Convert to fraction form
    132,268.90/182,509.75 = 81,265.22/x
  3. Step 3: Cross multiply
    132,268.90x = 182,509.75 × 81,265.22
  4. Step 4: Simplify right side
    132,268.90x = 14,831,695,543.75
  5. Step 5: Solve for x
    x = 14,831,695,543.75/132,268.90
  6. Step 6: Final answer
    x = 112,132.90

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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.