Home / 216,741.48-325,106.04-66,960

Finding the Fourth Proportional to 216,741.48, 325,106.04 and 66,960

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Solution

The fourth proportional to 216,741.48, 325,106.04 and 66,960 is: 100,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,741.48 : 325,106.04 = 66,960 : x
  2. Step 2: Convert to fraction form
    216,741.48/325,106.04 = 66,960/x
  3. Step 3: Cross multiply
    216,741.48x = 325,106.04 × 66,960
  4. Step 4: Simplify right side
    216,741.48x = 21,769,100,438.40
  5. Step 5: Solve for x
    x = 21,769,100,438.40/216,741.48
  6. Step 6: Final answer
    x = 100,438.09

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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.