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Finding the Fourth Proportional to 112,673.40, 169,010.10 and 102,305.40

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Solution

The fourth proportional to 112,673.40, 169,010.10 and 102,305.40 is: 153,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,673.40 : 169,010.10 = 102,305.40 : x
  2. Step 2: Convert to fraction form
    112,673.40/169,010.10 = 102,305.40/x
  3. Step 3: Cross multiply
    112,673.40x = 169,010.10 × 102,305.40
  4. Step 4: Simplify right side
    112,673.40x = 17,290,645,884.54
  5. Step 5: Solve for x
    x = 17,290,645,884.54/112,673.40
  6. Step 6: Final answer
    x = 153,458.10

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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.