Home / 79,357.04-118,751.37-68,720.25

Finding the Fourth Proportional to 79,357.04, 118,751.37 and 68,720.25

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Solution

The fourth proportional to 79,357.04, 118,751.37 and 68,720.25 is: 102,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,357.04 : 118,751.37 = 68,720.25 : x
  2. Step 2: Convert to fraction form
    79,357.04/118,751.37 = 68,720.25/x
  3. Step 3: Cross multiply
    79,357.04x = 118,751.37 × 68,720.25
  4. Step 4: Simplify right side
    79,357.04x = 8,160,623,353.88
  5. Step 5: Solve for x
    x = 8,160,623,353.88/79,357.04
  6. Step 6: Final answer
    x = 102,834.27

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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.