Home / 133,038.13-199,451.23-76,814.46

Finding the Fourth Proportional to 133,038.13, 199,451.23 and 76,814.46

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Solution

The fourth proportional to 133,038.13, 199,451.23 and 76,814.46 is: 115,160.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,038.13 : 199,451.23 = 76,814.46 : x
  2. Step 2: Convert to fraction form
    133,038.13/199,451.23 = 76,814.46/x
  3. Step 3: Cross multiply
    133,038.13x = 199,451.23 × 76,814.46
  4. Step 4: Simplify right side
    133,038.13x = 15,320,738,624.80
  5. Step 5: Solve for x
    x = 15,320,738,624.80/133,038.13
  6. Step 6: Final answer
    x = 115,160.51

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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.