Home / 199,387.86-275,085.77-127,807.35

Finding the Fourth Proportional to 199,387.86, 275,085.77 and 127,807.35

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Solution

The fourth proportional to 199,387.86, 275,085.77 and 127,807.35 is: 176,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,387.86 : 275,085.77 = 127,807.35 : x
  2. Step 2: Convert to fraction form
    199,387.86/275,085.77 = 127,807.35/x
  3. Step 3: Cross multiply
    199,387.86x = 275,085.77 × 127,807.35
  4. Step 4: Simplify right side
    199,387.86x = 35,157,982,647.37
  5. Step 5: Solve for x
    x = 35,157,982,647.37/199,387.86
  6. Step 6: Final answer
    x = 176,329.61

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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.