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Finding the Fourth Proportional to 145,471.59, 200,757.60 and 80,941.19

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Solution

The fourth proportional to 145,471.59, 200,757.60 and 80,941.19 is: 111,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,471.59 : 200,757.60 = 80,941.19 : x
  2. Step 2: Convert to fraction form
    145,471.59/200,757.60 = 80,941.19/x
  3. Step 3: Cross multiply
    145,471.59x = 200,757.60 × 80,941.19
  4. Step 4: Simplify right side
    145,471.59x = 16,249,558,041.76
  5. Step 5: Solve for x
    x = 16,249,558,041.76/145,471.59
  6. Step 6: Final answer
    x = 111,702.62

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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.