Home / 108,954.40-150,374.94-90,776.34

Finding the Fourth Proportional to 108,954.40, 150,374.94 and 90,776.34

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Solution

The fourth proportional to 108,954.40, 150,374.94 and 90,776.34 is: 125,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,954.40 : 150,374.94 = 90,776.34 : x
  2. Step 2: Convert to fraction form
    108,954.40/150,374.94 = 90,776.34/x
  3. Step 3: Cross multiply
    108,954.40x = 150,374.94 × 90,776.34
  4. Step 4: Simplify right side
    108,954.40x = 13,650,486,680.92
  5. Step 5: Solve for x
    x = 13,650,486,680.92/108,954.40
  6. Step 6: Final answer
    x = 125,286.24

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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.