Home / 145,150.20-217,437.30-127,831.80

Finding the Fourth Proportional to 145,150.20, 217,437.30 and 127,831.80

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Solution

The fourth proportional to 145,150.20, 217,437.30 and 127,831.80 is: 191,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,150.20 : 217,437.30 = 127,831.80 : x
  2. Step 2: Convert to fraction form
    145,150.20/217,437.30 = 127,831.80/x
  3. Step 3: Cross multiply
    145,150.20x = 217,437.30 × 127,831.80
  4. Step 4: Simplify right side
    145,150.20x = 27,795,401,446.14
  5. Step 5: Solve for x
    x = 27,795,401,446.14/145,150.20
  6. Step 6: Final answer
    x = 191,494.06

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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.