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Finding the Fourth Proportional to 185,412.60, 255,867.90 and 104,840.12

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Solution

The fourth proportional to 185,412.60, 255,867.90 and 104,840.12 is: 144,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,412.60 : 255,867.90 = 104,840.12 : x
  2. Step 2: Convert to fraction form
    185,412.60/255,867.90 = 104,840.12/x
  3. Step 3: Cross multiply
    185,412.60x = 255,867.90 × 104,840.12
  4. Step 4: Simplify right side
    185,412.60x = 26,825,221,340.15
  5. Step 5: Solve for x
    x = 26,825,221,340.15/185,412.60
  6. Step 6: Final answer
    x = 144,678.52

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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.