Home / 75,134.01-112,722.09-30,186.93

Finding the Fourth Proportional to 75,134.01, 112,722.09 and 30,186.93

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Solution

The fourth proportional to 75,134.01, 112,722.09 and 30,186.93 is: 45,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.01 : 112,722.09 = 30,186.93 : x
  2. Step 2: Convert to fraction form
    75,134.01/112,722.09 = 30,186.93/x
  3. Step 3: Cross multiply
    75,134.01x = 112,722.09 × 30,186.93
  4. Step 4: Simplify right side
    75,134.01x = 3,402,734,149.79
  5. Step 5: Solve for x
    x = 3,402,734,149.79/75,134.01
  6. Step 6: Final answer
    x = 45,288.86

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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.