Home / 131,535.51-197,305.08-42,789.48

Finding the Fourth Proportional to 131,535.51, 197,305.08 and 42,789.48

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Solution

The fourth proportional to 131,535.51, 197,305.08 and 42,789.48 is: 64,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,535.51 : 197,305.08 = 42,789.48 : x
  2. Step 2: Convert to fraction form
    131,535.51/197,305.08 = 42,789.48/x
  3. Step 3: Cross multiply
    131,535.51x = 197,305.08 × 42,789.48
  4. Step 4: Simplify right side
    131,535.51x = 8,442,580,788.03
  5. Step 5: Solve for x
    x = 8,442,580,788.03/131,535.51
  6. Step 6: Final answer
    x = 64,184.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.