Home / 109,727.20-164,590.80-103,895.20

Finding the Fourth Proportional to 109,727.20, 164,590.80 and 103,895.20

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Solution

The fourth proportional to 109,727.20, 164,590.80 and 103,895.20 is: 155,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,727.20 : 164,590.80 = 103,895.20 : x
  2. Step 2: Convert to fraction form
    109,727.20/164,590.80 = 103,895.20/x
  3. Step 3: Cross multiply
    109,727.20x = 164,590.80 × 103,895.20
  4. Step 4: Simplify right side
    109,727.20x = 17,100,194,084.16
  5. Step 5: Solve for x
    x = 17,100,194,084.16/109,727.20
  6. Step 6: Final answer
    x = 155,842.80

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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.