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Finding the Fourth Proportional to 175,879.68, 242,742.60 and 130,856.64

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Solution

The fourth proportional to 175,879.68, 242,742.60 and 130,856.64 is: 180,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,879.68 : 242,742.60 = 130,856.64 : x
  2. Step 2: Convert to fraction form
    175,879.68/242,742.60 = 130,856.64/x
  3. Step 3: Cross multiply
    175,879.68x = 242,742.60 × 130,856.64
  4. Step 4: Simplify right side
    175,879.68x = 31,764,481,020.86
  5. Step 5: Solve for x
    x = 31,764,481,020.86/175,879.68
  6. Step 6: Final answer
    x = 180,603.47

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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.