Home / 132,191.45-182,519.01-81,272.51

Finding the Fourth Proportional to 132,191.45, 182,519.01 and 81,272.51

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Solution

The fourth proportional to 132,191.45, 182,519.01 and 81,272.51 is: 112,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,191.45 : 182,519.01 = 81,272.51 : x
  2. Step 2: Convert to fraction form
    132,191.45/182,519.01 = 81,272.51/x
  3. Step 3: Cross multiply
    132,191.45x = 182,519.01 × 81,272.51
  4. Step 4: Simplify right side
    132,191.45x = 14,833,777,152.82
  5. Step 5: Solve for x
    x = 14,833,777,152.82/132,191.45
  6. Step 6: Final answer
    x = 112,214.35

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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.