Home / 108,816.90-163,126.87-38,679.81

Finding the Fourth Proportional to 108,816.90, 163,126.87 and 38,679.81

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Solution

The fourth proportional to 108,816.90, 163,126.87 and 38,679.81 is: 57,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,816.90 : 163,126.87 = 38,679.81 : x
  2. Step 2: Convert to fraction form
    108,816.90/163,126.87 = 38,679.81/x
  3. Step 3: Cross multiply
    108,816.90x = 163,126.87 × 38,679.81
  4. Step 4: Simplify right side
    108,816.90x = 6,309,716,240.80
  5. Step 5: Solve for x
    x = 6,309,716,240.80/108,816.90
  6. Step 6: Final answer
    x = 57,984.71

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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.