Home / 108,938.90-163,408.35-101,065.70

Finding the Fourth Proportional to 108,938.90, 163,408.35 and 101,065.70

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Solution

The fourth proportional to 108,938.90, 163,408.35 and 101,065.70 is: 151,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,938.90 : 163,408.35 = 101,065.70 : x
  2. Step 2: Convert to fraction form
    108,938.90/163,408.35 = 101,065.70/x
  3. Step 3: Cross multiply
    108,938.90x = 163,408.35 × 101,065.70
  4. Step 4: Simplify right side
    108,938.90x = 16,514,979,278.60
  5. Step 5: Solve for x
    x = 16,514,979,278.60/108,938.90
  6. Step 6: Final answer
    x = 151,598.55

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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.