Home / 216,538.64-324,834.36-91,837.52

Finding the Fourth Proportional to 216,538.64, 324,834.36 and 91,837.52

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Solution

The fourth proportional to 216,538.64, 324,834.36 and 91,837.52 is: 137,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,538.64 : 324,834.36 = 91,837.52 : x
  2. Step 2: Convert to fraction form
    216,538.64/324,834.36 = 91,837.52/x
  3. Step 3: Cross multiply
    216,538.64x = 324,834.36 × 91,837.52
  4. Step 4: Simplify right side
    216,538.64x = 29,831,982,033.19
  5. Step 5: Solve for x
    x = 29,831,982,033.19/216,538.64
  6. Step 6: Final answer
    x = 137,767.48

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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.