Home / 134,628.05-185,779.13-74,198.51

Finding the Fourth Proportional to 134,628.05, 185,779.13 and 74,198.51

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Solution

The fourth proportional to 134,628.05, 185,779.13 and 74,198.51 is: 102,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,628.05 : 185,779.13 = 74,198.51 : x
  2. Step 2: Convert to fraction form
    134,628.05/185,779.13 = 74,198.51/x
  3. Step 3: Cross multiply
    134,628.05x = 185,779.13 × 74,198.51
  4. Step 4: Simplify right side
    134,628.05x = 13,784,534,077.90
  5. Step 5: Solve for x
    x = 13,784,534,077.90/134,628.05
  6. Step 6: Final answer
    x = 102,389.76

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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.