Home / 120,186.86-180,153.17-45,274.59

Finding the Fourth Proportional to 120,186.86, 180,153.17 and 45,274.59

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Solution

The fourth proportional to 120,186.86, 180,153.17 and 45,274.59 is: 67,864.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,186.86 : 180,153.17 = 45,274.59 : x
  2. Step 2: Convert to fraction form
    120,186.86/180,153.17 = 45,274.59/x
  3. Step 3: Cross multiply
    120,186.86x = 180,153.17 × 45,274.59
  4. Step 4: Simplify right side
    120,186.86x = 8,156,361,022.14
  5. Step 5: Solve for x
    x = 8,156,361,022.14/120,186.86
  6. Step 6: Final answer
    x = 67,864.00

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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.