Home / 120,325.17-180,398.30-72,928.63

Finding the Fourth Proportional to 120,325.17, 180,398.30 and 72,928.63

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Solution

The fourth proportional to 120,325.17, 180,398.30 and 72,928.63 is: 109,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,325.17 : 180,398.30 = 72,928.63 : x
  2. Step 2: Convert to fraction form
    120,325.17/180,398.30 = 72,928.63/x
  3. Step 3: Cross multiply
    120,325.17x = 180,398.30 × 72,928.63
  4. Step 4: Simplify right side
    120,325.17x = 13,156,200,873.33
  5. Step 5: Solve for x
    x = 13,156,200,873.33/120,325.17
  6. Step 6: Final answer
    x = 109,338.73

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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.