Home / 199,387.48-275,393.64-145,587.28

Finding the Fourth Proportional to 199,387.48, 275,393.64 and 145,587.28

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Solution

The fourth proportional to 199,387.48, 275,393.64 and 145,587.28 is: 201,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,387.48 : 275,393.64 = 145,587.28 : x
  2. Step 2: Convert to fraction form
    199,387.48/275,393.64 = 145,587.28/x
  3. Step 3: Cross multiply
    199,387.48x = 275,393.64 × 145,587.28
  4. Step 4: Simplify right side
    199,387.48x = 40,093,810,976.90
  5. Step 5: Solve for x
    x = 40,093,810,976.90/199,387.48
  6. Step 6: Final answer
    x = 201,084.90

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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.