Home / 235,936.80-325,581.66-128,506.50

Finding the Fourth Proportional to 235,936.80, 325,581.66 and 128,506.50

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Solution

The fourth proportional to 235,936.80, 325,581.66 and 128,506.50 is: 177,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,936.80 : 325,581.66 = 128,506.50 : x
  2. Step 2: Convert to fraction form
    235,936.80/325,581.66 = 128,506.50/x
  3. Step 3: Cross multiply
    235,936.80x = 325,581.66 × 128,506.50
  4. Step 4: Simplify right side
    235,936.80x = 41,839,359,590.79
  5. Step 5: Solve for x
    x = 41,839,359,590.79/235,936.80
  6. Step 6: Final answer
    x = 177,332.91

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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.