Home / 145,741.41-201,137.49-85,308.39

Finding the Fourth Proportional to 145,741.41, 201,137.49 and 85,308.39

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Solution

The fourth proportional to 145,741.41, 201,137.49 and 85,308.39 is: 117,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,741.41 : 201,137.49 = 85,308.39 : x
  2. Step 2: Convert to fraction form
    145,741.41/201,137.49 = 85,308.39/x
  3. Step 3: Cross multiply
    145,741.41x = 201,137.49 × 85,308.39
  4. Step 4: Simplify right side
    145,741.41x = 17,158,715,440.54
  5. Step 5: Solve for x
    x = 17,158,715,440.54/145,741.41
  6. Step 6: Final answer
    x = 117,733.97

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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.