Home / 121,433.64-182,219.58-79,900.20

Finding the Fourth Proportional to 121,433.64, 182,219.58 and 79,900.20

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Solution

The fourth proportional to 121,433.64, 182,219.58 and 79,900.20 is: 119,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,433.64 : 182,219.58 = 79,900.20 : x
  2. Step 2: Convert to fraction form
    121,433.64/182,219.58 = 79,900.20/x
  3. Step 3: Cross multiply
    121,433.64x = 182,219.58 × 79,900.20
  4. Step 4: Simplify right side
    121,433.64x = 14,559,380,885.92
  5. Step 5: Solve for x
    x = 14,559,380,885.92/121,433.64
  6. Step 6: Final answer
    x = 119,895.78

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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.