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Finding the Fourth Proportional to 145,480.59, 200,733.11 and 85,039.54

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Solution

The fourth proportional to 145,480.59, 200,733.11 and 85,039.54 is: 117,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.59 : 200,733.11 = 85,039.54 : x
  2. Step 2: Convert to fraction form
    145,480.59/200,733.11 = 85,039.54/x
  3. Step 3: Cross multiply
    145,480.59x = 200,733.11 × 85,039.54
  4. Step 4: Simplify right side
    145,480.59x = 17,070,249,908.31
  5. Step 5: Solve for x
    x = 17,070,249,908.31/145,480.59
  6. Step 6: Final answer
    x = 117,336.96

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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.