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Finding the Fourth Proportional to 162,445.88, 223,969.78 and 104,988.54

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Solution

The fourth proportional to 162,445.88, 223,969.78 and 104,988.54 is: 144,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,445.88 : 223,969.78 = 104,988.54 : x
  2. Step 2: Convert to fraction form
    162,445.88/223,969.78 = 104,988.54/x
  3. Step 3: Cross multiply
    162,445.88x = 223,969.78 × 104,988.54
  4. Step 4: Simplify right side
    162,445.88x = 23,514,260,206.32
  5. Step 5: Solve for x
    x = 23,514,260,206.32/162,445.88
  6. Step 6: Final answer
    x = 144,751.35

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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.