Home / 132,541.68-182,837.79-78,788.46

Finding the Fourth Proportional to 132,541.68, 182,837.79 and 78,788.46

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Solution

The fourth proportional to 132,541.68, 182,837.79 and 78,788.46 is: 108,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,541.68 : 182,837.79 = 78,788.46 : x
  2. Step 2: Convert to fraction form
    132,541.68/182,837.79 = 78,788.46/x
  3. Step 3: Cross multiply
    132,541.68x = 182,837.79 × 78,788.46
  4. Step 4: Simplify right side
    132,541.68x = 14,405,507,903.90
  5. Step 5: Solve for x
    x = 14,405,507,903.90/132,541.68
  6. Step 6: Final answer
    x = 108,686.63

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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.