Home / 108,907,975.20-163,361,962.80-84,249,112.80

Finding the Fourth Proportional to 108,907,975.20, 163,361,962.80 and 84,249,112.80

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Solution

The fourth proportional to 108,907,975.20, 163,361,962.80 and 84,249,112.80 is: 126,373,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,907,975.20 : 163,361,962.80 = 84,249,112.80 : x
  2. Step 2: Convert to fraction form
    108,907,975.20/163,361,962.80 = 84,249,112.80/x
  3. Step 3: Cross multiply
    108,907,975.20x = 163,361,962.80 × 84,249,112.80
  4. Step 4: Simplify right side
    108,907,975.20x = 13,763,100,431,166,604
  5. Step 5: Solve for x
    x = 13,763,100,431,166,604/108,907,975.20
  6. Step 6: Final answer
    x = 126,373,669.20

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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.