Home / 199,459.09-275,169.04-127,816.21

Finding the Fourth Proportional to 199,459.09, 275,169.04 and 127,816.21

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Solution

The fourth proportional to 199,459.09, 275,169.04 and 127,816.21 is: 176,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,459.09 : 275,169.04 = 127,816.21 : x
  2. Step 2: Convert to fraction form
    199,459.09/275,169.04 = 127,816.21/x
  3. Step 3: Cross multiply
    199,459.09x = 275,169.04 × 127,816.21
  4. Step 4: Simplify right side
    199,459.09x = 35,171,063,802.14
  5. Step 5: Solve for x
    x = 35,171,063,802.14/199,459.09
  6. Step 6: Final answer
    x = 176,332.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.