Home / 108,017.21-149,039.88-62,668.92

Finding the Fourth Proportional to 108,017.21, 149,039.88 and 62,668.92

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Solution

The fourth proportional to 108,017.21, 149,039.88 and 62,668.92 is: 86,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,017.21 : 149,039.88 = 62,668.92 : x
  2. Step 2: Convert to fraction form
    108,017.21/149,039.88 = 62,668.92/x
  3. Step 3: Cross multiply
    108,017.21x = 149,039.88 × 62,668.92
  4. Step 4: Simplify right side
    108,017.21x = 9,340,168,316.53
  5. Step 5: Solve for x
    x = 9,340,168,316.53/108,017.21
  6. Step 6: Final answer
    x = 86,469.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.