Home / 145,304.56-200,514.72-81,645.04

Finding the Fourth Proportional to 145,304.56, 200,514.72 and 81,645.04

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Solution

The fourth proportional to 145,304.56, 200,514.72 and 81,645.04 is: 112,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,304.56 : 200,514.72 = 81,645.04 : x
  2. Step 2: Convert to fraction form
    145,304.56/200,514.72 = 81,645.04/x
  3. Step 3: Cross multiply
    145,304.56x = 200,514.72 × 81,645.04
  4. Step 4: Simplify right side
    145,304.56x = 16,371,032,334.99
  5. Step 5: Solve for x
    x = 16,371,032,334.99/145,304.56
  6. Step 6: Final answer
    x = 112,667.02

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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.