Home / 235,721.51-325,303.67-128,295.44

Finding the Fourth Proportional to 235,721.51, 325,303.67 and 128,295.44

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Solution

The fourth proportional to 235,721.51, 325,303.67 and 128,295.44 is: 177,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,721.51 : 325,303.67 = 128,295.44 : x
  2. Step 2: Convert to fraction form
    235,721.51/325,303.67 = 128,295.44/x
  3. Step 3: Cross multiply
    235,721.51x = 325,303.67 × 128,295.44
  4. Step 4: Simplify right side
    235,721.51x = 41,734,976,834.79
  5. Step 5: Solve for x
    x = 41,734,976,834.79/235,721.51
  6. Step 6: Final answer
    x = 177,052.05

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1.5x scale

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.