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Finding the Fourth Proportional to 145,379.61, 200,594.45 and 84,938.57

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Solution

The fourth proportional to 145,379.61, 200,594.45 and 84,938.57 is: 117,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,379.61 : 200,594.45 = 84,938.57 : x
  2. Step 2: Convert to fraction form
    145,379.61/200,594.45 = 84,938.57/x
  3. Step 3: Cross multiply
    145,379.61x = 200,594.45 × 84,938.57
  4. Step 4: Simplify right side
    145,379.61x = 17,038,204,305.27
  5. Step 5: Solve for x
    x = 17,038,204,305.27/145,379.61
  6. Step 6: Final answer
    x = 117,198.03

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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.