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Finding the Fourth Proportional to 183,690.86, 253,493.25 and 103,118.54

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Solution

The fourth proportional to 183,690.86, 253,493.25 and 103,118.54 is: 142,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,690.86 : 253,493.25 = 103,118.54 : x
  2. Step 2: Convert to fraction form
    183,690.86/253,493.25 = 103,118.54/x
  3. Step 3: Cross multiply
    183,690.86x = 253,493.25 × 103,118.54
  4. Step 4: Simplify right side
    183,690.86x = 26,139,852,572.39
  5. Step 5: Solve for x
    x = 26,139,852,572.39/183,690.86
  6. Step 6: Final answer
    x = 142,303.51

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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.