Home / 145,542.27-200,847.56-81,880.47

Finding the Fourth Proportional to 145,542.27, 200,847.56 and 81,880.47

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Solution

The fourth proportional to 145,542.27, 200,847.56 and 81,880.47 is: 112,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542.27 : 200,847.56 = 81,880.47 : x
  2. Step 2: Convert to fraction form
    145,542.27/200,847.56 = 81,880.47/x
  3. Step 3: Cross multiply
    145,542.27x = 200,847.56 × 81,880.47
  4. Step 4: Simplify right side
    145,542.27x = 16,445,492,201.75
  5. Step 5: Solve for x
    x = 16,445,492,201.75/145,542.27
  6. Step 6: Final answer
    x = 112,994.61

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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.