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Finding the Fourth Proportional to 132,419.51, 182,742.53 and 71,994.22

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Solution

The fourth proportional to 132,419.51, 182,742.53 and 71,994.22 is: 99,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.51 : 182,742.53 = 71,994.22 : x
  2. Step 2: Convert to fraction form
    132,419.51/182,742.53 = 71,994.22/x
  3. Step 3: Cross multiply
    132,419.51x = 182,742.53 × 71,994.22
  4. Step 4: Simplify right side
    132,419.51x = 13,156,405,908.18
  5. Step 5: Solve for x
    x = 13,156,405,908.18/132,419.51
  6. Step 6: Final answer
    x = 99,353.98

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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.