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Finding the Fourth Proportional to 163,020.60, 244,530.90 and 115,781.40

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Solution

The fourth proportional to 163,020.60, 244,530.90 and 115,781.40 is: 173,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,020.60 : 244,530.90 = 115,781.40 : x
  2. Step 2: Convert to fraction form
    163,020.60/244,530.90 = 115,781.40/x
  3. Step 3: Cross multiply
    163,020.60x = 244,530.90 × 115,781.40
  4. Step 4: Simplify right side
    163,020.60x = 28,312,129,945.26
  5. Step 5: Solve for x
    x = 28,312,129,945.26/163,020.60
  6. Step 6: Final answer
    x = 173,672.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.