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Finding the Fourth Proportional to 185,055.66, 255,376.53 and 100,173.06

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Solution

The fourth proportional to 185,055.66, 255,376.53 and 100,173.06 is: 138,238.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,055.66 : 255,376.53 = 100,173.06 : x
  2. Step 2: Convert to fraction form
    185,055.66/255,376.53 = 100,173.06/x
  3. Step 3: Cross multiply
    185,055.66x = 255,376.53 × 100,173.06
  4. Step 4: Simplify right side
    185,055.66x = 25,581,848,462.28
  5. Step 5: Solve for x
    x = 25,581,848,462.28/185,055.66
  6. Step 6: Final answer
    x = 138,238.67

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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.