Home / 216,102.08-324,141.39-66,342.39

Finding the Fourth Proportional to 216,102.08, 324,141.39 and 66,342.39

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Solution

The fourth proportional to 216,102.08, 324,141.39 and 66,342.39 is: 99,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,102.08 : 324,141.39 = 66,342.39 : x
  2. Step 2: Convert to fraction form
    216,102.08/324,141.39 = 66,342.39/x
  3. Step 3: Cross multiply
    216,102.08x = 324,141.39 × 66,342.39
  4. Step 4: Simplify right side
    216,102.08x = 21,504,314,510.52
  5. Step 5: Solve for x
    x = 21,504,314,510.52/216,102.08
  6. Step 6: Final answer
    x = 99,509.98

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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.