Home / 145,838.80-218,758.20-135,997.30

Finding the Fourth Proportional to 145,838.80, 218,758.20 and 135,997.30

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Solution

The fourth proportional to 145,838.80, 218,758.20 and 135,997.30 is: 203,995.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,838.80 : 218,758.20 = 135,997.30 : x
  2. Step 2: Convert to fraction form
    145,838.80/218,758.20 = 135,997.30/x
  3. Step 3: Cross multiply
    145,838.80x = 218,758.20 × 135,997.30
  4. Step 4: Simplify right side
    145,838.80x = 29,750,524,552.86
  5. Step 5: Solve for x
    x = 29,750,524,552.86/145,838.80
  6. Step 6: Final answer
    x = 203,995.95

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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.