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Finding the Fourth Proportional to 169,878.66, 234,239.93 and 108,543.81

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Solution

The fourth proportional to 169,878.66, 234,239.93 and 108,543.81 is: 149,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,878.66 : 234,239.93 = 108,543.81 : x
  2. Step 2: Convert to fraction form
    169,878.66/234,239.93 = 108,543.81/x
  3. Step 3: Cross multiply
    169,878.66x = 234,239.93 × 108,543.81
  4. Step 4: Simplify right side
    169,878.66x = 25,425,295,809.61
  5. Step 5: Solve for x
    x = 25,425,295,809.61/169,878.66
  6. Step 6: Final answer
    x = 149,667.39

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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.