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Finding the Fourth Proportional to 118,208.60, 177,312.90 and 114,928.10

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Solution

The fourth proportional to 118,208.60, 177,312.90 and 114,928.10 is: 172,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,208.60 : 177,312.90 = 114,928.10 : x
  2. Step 2: Convert to fraction form
    118,208.60/177,312.90 = 114,928.10/x
  3. Step 3: Cross multiply
    118,208.60x = 177,312.90 × 114,928.10
  4. Step 4: Simplify right side
    118,208.60x = 20,378,234,702.49
  5. Step 5: Solve for x
    x = 20,378,234,702.49/118,208.60
  6. Step 6: Final answer
    x = 172,392.15

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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.