Home / 108,903.20-163,256.38-75,638.93

Finding the Fourth Proportional to 108,903.20, 163,256.38 and 75,638.93

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Solution

The fourth proportional to 108,903.20, 163,256.38 and 75,638.93 is: 113,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,903.20 : 163,256.38 = 75,638.93 : x
  2. Step 2: Convert to fraction form
    108,903.20/163,256.38 = 75,638.93/x
  3. Step 3: Cross multiply
    108,903.20x = 163,256.38 × 75,638.93
  4. Step 4: Simplify right side
    108,903.20x = 12,348,536,893.49
  5. Step 5: Solve for x
    x = 12,348,536,893.49/108,903.20
  6. Step 6: Final answer
    x = 113,390.03

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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.