Home / 104,168.90-155,338.62-103,221.66

Finding the Fourth Proportional to 104,168.90, 155,338.62 and 103,221.66

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Solution

The fourth proportional to 104,168.90, 155,338.62 and 103,221.66 is: 153,926.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,168.90 : 155,338.62 = 103,221.66 : x
  2. Step 2: Convert to fraction form
    104,168.90/155,338.62 = 103,221.66/x
  3. Step 3: Cross multiply
    104,168.90x = 155,338.62 × 103,221.66
  4. Step 4: Simplify right side
    104,168.90x = 16,034,310,218.51
  5. Step 5: Solve for x
    x = 16,034,310,218.51/104,168.90
  6. Step 6: Final answer
    x = 153,926.08

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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.