Home / 102,665.19-141,676.47-57,343.83

Finding the Fourth Proportional to 102,665.19, 141,676.47 and 57,343.83

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Solution

The fourth proportional to 102,665.19, 141,676.47 and 57,343.83 is: 79,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,665.19 : 141,676.47 = 57,343.83 : x
  2. Step 2: Convert to fraction form
    102,665.19/141,676.47 = 57,343.83/x
  3. Step 3: Cross multiply
    102,665.19x = 141,676.47 × 57,343.83
  4. Step 4: Simplify right side
    102,665.19x = 8,124,271,410.68
  5. Step 5: Solve for x
    x = 8,124,271,410.68/102,665.19
  6. Step 6: Final answer
    x = 79,133.65

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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.