Home / 216,968.32-325,532.52-90,621.76

Finding the Fourth Proportional to 216,968.32, 325,532.52 and 90,621.76

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Solution

The fourth proportional to 216,968.32, 325,532.52 and 90,621.76 is: 135,966.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,968.32 : 325,532.52 = 90,621.76 : x
  2. Step 2: Convert to fraction form
    216,968.32/325,532.52 = 90,621.76/x
  3. Step 3: Cross multiply
    216,968.32x = 325,532.52 × 90,621.76
  4. Step 4: Simplify right side
    216,968.32x = 29,500,329,899.64
  5. Step 5: Solve for x
    x = 29,500,329,899.64/216,968.32
  6. Step 6: Final answer
    x = 135,966.07

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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.