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Finding the Fourth Proportional to 118,230.40, 177,345.60 and 103,468.15

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Solution

The fourth proportional to 118,230.40, 177,345.60 and 103,468.15 is: 155,202.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.40 : 177,345.60 = 103,468.15 : x
  2. Step 2: Convert to fraction form
    118,230.40/177,345.60 = 103,468.15/x
  3. Step 3: Cross multiply
    118,230.40x = 177,345.60 × 103,468.15
  4. Step 4: Simplify right side
    118,230.40x = 18,349,621,142.64
  5. Step 5: Solve for x
    x = 18,349,621,142.64/118,230.40
  6. Step 6: Final answer
    x = 155,202.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.