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Finding the Fourth Proportional to 185,017.94, 255,321.97 and 103,347.31

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Solution

The fourth proportional to 185,017.94, 255,321.97 and 103,347.31 is: 142,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,017.94 : 255,321.97 = 103,347.31 : x
  2. Step 2: Convert to fraction form
    185,017.94/255,321.97 = 103,347.31/x
  3. Step 3: Cross multiply
    185,017.94x = 255,321.97 × 103,347.31
  4. Step 4: Simplify right side
    185,017.94x = 26,386,838,946.78
  5. Step 5: Solve for x
    x = 26,386,838,946.78/185,017.94
  6. Step 6: Final answer
    x = 142,617.73

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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.