Home / 136,145.10-204,044.85-121,284.30

Finding the Fourth Proportional to 136,145.10, 204,044.85 and 121,284.30

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Solution

The fourth proportional to 136,145.10, 204,044.85 and 121,284.30 is: 181,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,145.10 : 204,044.85 = 121,284.30 : x
  2. Step 2: Convert to fraction form
    136,145.10/204,044.85 = 121,284.30/x
  3. Step 3: Cross multiply
    136,145.10x = 204,044.85 × 121,284.30
  4. Step 4: Simplify right side
    136,145.10x = 24,747,436,800.86
  5. Step 5: Solve for x
    x = 24,747,436,800.86/136,145.10
  6. Step 6: Final answer
    x = 181,772.51

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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.