Home / 145,450.17-218,105.91-50,668.70

Finding the Fourth Proportional to 145,450.17, 218,105.91 and 50,668.70

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Solution

The fourth proportional to 145,450.17, 218,105.91 and 50,668.70 is: 75,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,450.17 : 218,105.91 = 50,668.70 : x
  2. Step 2: Convert to fraction form
    145,450.17/218,105.91 = 50,668.70/x
  3. Step 3: Cross multiply
    145,450.17x = 218,105.91 × 50,668.70
  4. Step 4: Simplify right side
    145,450.17x = 11,051,141,831.49
  5. Step 5: Solve for x
    x = 11,051,141,831.49/145,450.17
  6. Step 6: Final answer
    x = 75,978.89

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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.