Home / 144,619.90-216,894.87-55,816.78

Finding the Fourth Proportional to 144,619.90, 216,894.87 and 55,816.78

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Solution

The fourth proportional to 144,619.90, 216,894.87 and 55,816.78 is: 83,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,619.90 : 216,894.87 = 55,816.78 : x
  2. Step 2: Convert to fraction form
    144,619.90/216,894.87 = 55,816.78/x
  3. Step 3: Cross multiply
    144,619.90x = 216,894.87 × 55,816.78
  4. Step 4: Simplify right side
    144,619.90x = 12,106,373,241.92
  5. Step 5: Solve for x
    x = 12,106,373,241.92/144,619.90
  6. Step 6: Final answer
    x = 83,711.67

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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.