Home / 145,276.74-200,487.06-80,747.28

Finding the Fourth Proportional to 145,276.74, 200,487.06 and 80,747.28

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Solution

The fourth proportional to 145,276.74, 200,487.06 and 80,747.28 is: 111,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,276.74 : 200,487.06 = 80,747.28 : x
  2. Step 2: Convert to fraction form
    145,276.74/200,487.06 = 80,747.28/x
  3. Step 3: Cross multiply
    145,276.74x = 200,487.06 × 80,747.28
  4. Step 4: Simplify right side
    145,276.74x = 16,188,784,770.20
  5. Step 5: Solve for x
    x = 16,188,784,770.20/145,276.74
  6. Step 6: Final answer
    x = 111,434.11

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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.