Home / 108,898.88-163,354.47-38,778.20

Finding the Fourth Proportional to 108,898.88, 163,354.47 and 38,778.20

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Solution

The fourth proportional to 108,898.88, 163,354.47 and 38,778.20 is: 58,169.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,898.88 : 163,354.47 = 38,778.20 : x
  2. Step 2: Convert to fraction form
    108,898.88/163,354.47 = 38,778.20/x
  3. Step 3: Cross multiply
    108,898.88x = 163,354.47 × 38,778.20
  4. Step 4: Simplify right side
    108,898.88x = 6,334,591,491.78
  5. Step 5: Solve for x
    x = 6,334,591,491.78/108,898.88
  6. Step 6: Final answer
    x = 58,169.49

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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.