Home / 235,965.72-325,631.02-128,535.42

Finding the Fourth Proportional to 235,965.72, 325,631.02 and 128,535.42

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Solution

The fourth proportional to 235,965.72, 325,631.02 and 128,535.42 is: 177,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,965.72 : 325,631.02 = 128,535.42 : x
  2. Step 2: Convert to fraction form
    235,965.72/325,631.02 = 128,535.42/x
  3. Step 3: Cross multiply
    235,965.72x = 325,631.02 × 128,535.42
  4. Step 4: Simplify right side
    235,965.72x = 41,855,119,920.73
  5. Step 5: Solve for x
    x = 41,855,119,920.73/235,965.72
  6. Step 6: Final answer
    x = 177,377.97

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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.