Home / 145,829.20-218,743.80-144,907.60

Finding the Fourth Proportional to 145,829.20, 218,743.80 and 144,907.60

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Solution

The fourth proportional to 145,829.20, 218,743.80 and 144,907.60 is: 217,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,829.20 : 218,743.80 = 144,907.60 : x
  2. Step 2: Convert to fraction form
    145,829.20/218,743.80 = 144,907.60/x
  3. Step 3: Cross multiply
    145,829.20x = 218,743.80 × 144,907.60
  4. Step 4: Simplify right side
    145,829.20x = 31,697,639,072.88
  5. Step 5: Solve for x
    x = 31,697,639,072.88/145,829.20
  6. Step 6: Final answer
    x = 217,361.40

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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.