Home / 145,201.24-200,376.94-81,544.60

Finding the Fourth Proportional to 145,201.24, 200,376.94 and 81,544.60

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Solution

The fourth proportional to 145,201.24, 200,376.94 and 81,544.60 is: 112,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,201.24 : 200,376.94 = 81,544.60 : x
  2. Step 2: Convert to fraction form
    145,201.24/200,376.94 = 81,544.60/x
  3. Step 3: Cross multiply
    145,201.24x = 200,376.94 × 81,544.60
  4. Step 4: Simplify right side
    145,201.24x = 16,339,657,421.52
  5. Step 5: Solve for x
    x = 16,339,657,421.52/145,201.24
  6. Step 6: Final answer
    x = 112,531.11

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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.