Home / 79,172.66-118,164.36-68,451.59

Finding the Fourth Proportional to 79,172.66, 118,164.36 and 68,451.59

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Solution

The fourth proportional to 79,172.66, 118,164.36 and 68,451.59 is: 102,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,172.66 : 118,164.36 = 68,451.59 : x
  2. Step 2: Convert to fraction form
    79,172.66/118,164.36 = 68,451.59/x
  3. Step 3: Cross multiply
    79,172.66x = 118,164.36 × 68,451.59
  4. Step 4: Simplify right side
    79,172.66x = 8,088,537,732.51
  5. Step 5: Solve for x
    x = 8,088,537,732.51/79,172.66
  6. Step 6: Final answer
    x = 102,163.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.