Home / 199,549.09-275,341.48-117,890.64

Finding the Fourth Proportional to 199,549.09, 275,341.48 and 117,890.64

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Solution

The fourth proportional to 199,549.09, 275,341.48 and 117,890.64 is: 162,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,549.09 : 275,341.48 = 117,890.64 : x
  2. Step 2: Convert to fraction form
    199,549.09/275,341.48 = 117,890.64/x
  3. Step 3: Cross multiply
    199,549.09x = 275,341.48 × 117,890.64
  4. Step 4: Simplify right side
    199,549.09x = 32,460,183,001.02
  5. Step 5: Solve for x
    x = 32,460,183,001.02/199,549.09
  6. Step 6: Final answer
    x = 162,667.66

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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.