Home / 145,068.62-200,203.76-83,817.44

Finding the Fourth Proportional to 145,068.62, 200,203.76 and 83,817.44

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Solution

The fourth proportional to 145,068.62, 200,203.76 and 83,817.44 is: 115,673.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,068.62 : 200,203.76 = 83,817.44 : x
  2. Step 2: Convert to fraction form
    145,068.62/200,203.76 = 83,817.44/x
  3. Step 3: Cross multiply
    145,068.62x = 200,203.76 × 83,817.44
  4. Step 4: Simplify right side
    145,068.62x = 16,780,565,850.10
  5. Step 5: Solve for x
    x = 16,780,565,850.10/145,068.62
  6. Step 6: Final answer
    x = 115,673.30

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1.5x scale

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.