Home / 132,419.79-182,742.90-71,994.51

Finding the Fourth Proportional to 132,419.79, 182,742.90 and 71,994.51

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Solution

The fourth proportional to 132,419.79, 182,742.90 and 71,994.51 is: 99,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.79 : 182,742.90 = 71,994.51 : x
  2. Step 2: Convert to fraction form
    132,419.79/182,742.90 = 71,994.51/x
  3. Step 3: Cross multiply
    132,419.79x = 182,742.90 × 71,994.51
  4. Step 4: Simplify right side
    132,419.79x = 13,156,485,541.48
  5. Step 5: Solve for x
    x = 13,156,485,541.48/132,419.79
  6. Step 6: Final answer
    x = 99,354.38

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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.