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Finding the Fourth Proportional to 185,081.76, 255,400.56 and 103,408.92

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Solution

The fourth proportional to 185,081.76, 255,400.56 and 103,408.92 is: 142,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,081.76 : 255,400.56 = 103,408.92 : x
  2. Step 2: Convert to fraction form
    185,081.76/255,400.56 = 103,408.92/x
  3. Step 3: Cross multiply
    185,081.76x = 255,400.56 × 103,408.92
  4. Step 4: Simplify right side
    185,081.76x = 26,410,696,077.00
  5. Step 5: Solve for x
    x = 26,410,696,077.00/185,081.76
  6. Step 6: Final answer
    x = 142,697.45

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1.5x scale

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.