Home / 216,780.06-325,203.84-128,097.48

Finding the Fourth Proportional to 216,780.06, 325,203.84 and 128,097.48

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Solution

The fourth proportional to 216,780.06, 325,203.84 and 128,097.48 is: 192,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,780.06 : 325,203.84 = 128,097.48 : x
  2. Step 2: Convert to fraction form
    216,780.06/325,203.84 = 128,097.48/x
  3. Step 3: Cross multiply
    216,780.06x = 325,203.84 × 128,097.48
  4. Step 4: Simplify right side
    216,780.06x = 41,657,792,390.32
  5. Step 5: Solve for x
    x = 41,657,792,390.32/216,780.06
  6. Step 6: Final answer
    x = 192,166.16

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1.5x scale

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.