Home / 216,966.32-325,529.52-90,619.76

Finding the Fourth Proportional to 216,966.32, 325,529.52 and 90,619.76

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Solution

The fourth proportional to 216,966.32, 325,529.52 and 90,619.76 is: 135,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,966.32 : 325,529.52 = 90,619.76 : x
  2. Step 2: Convert to fraction form
    216,966.32/325,529.52 = 90,619.76/x
  3. Step 3: Cross multiply
    216,966.32x = 325,529.52 × 90,619.76
  4. Step 4: Simplify right side
    216,966.32x = 29,499,406,975.32
  5. Step 5: Solve for x
    x = 29,499,406,975.32/216,966.32
  6. Step 6: Final answer
    x = 135,963.07

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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.