Home / 145,165.41-200,328.27-81,504.58

Finding the Fourth Proportional to 145,165.41, 200,328.27 and 81,504.58

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Solution

The fourth proportional to 145,165.41, 200,328.27 and 81,504.58 is: 112,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,165.41 : 200,328.27 = 81,504.58 : x
  2. Step 2: Convert to fraction form
    145,165.41/200,328.27 = 81,504.58/x
  3. Step 3: Cross multiply
    145,165.41x = 200,328.27 × 81,504.58
  4. Step 4: Simplify right side
    145,165.41x = 16,327,670,099.31
  5. Step 5: Solve for x
    x = 16,327,670,099.31/145,165.41
  6. Step 6: Final answer
    x = 112,476.31

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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.