Home / 109,193.12-150,627.60-72,956.96

Finding the Fourth Proportional to 109,193.12, 150,627.60 and 72,956.96

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Solution

The fourth proportional to 109,193.12, 150,627.60 and 72,956.96 is: 100,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,193.12 : 150,627.60 = 72,956.96 : x
  2. Step 2: Convert to fraction form
    109,193.12/150,627.60 = 72,956.96/x
  3. Step 3: Cross multiply
    109,193.12x = 150,627.60 × 72,956.96
  4. Step 4: Simplify right side
    109,193.12x = 10,989,331,788.10
  5. Step 5: Solve for x
    x = 10,989,331,788.10/109,193.12
  6. Step 6: Final answer
    x = 100,641.25

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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.