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Finding the Fourth Proportional to 133,097.64, 183,630.64 and 87,798.12

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Solution

The fourth proportional to 133,097.64, 183,630.64 and 87,798.12 is: 121,132.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,097.64 : 183,630.64 = 87,798.12 : x
  2. Step 2: Convert to fraction form
    133,097.64/183,630.64 = 87,798.12/x
  3. Step 3: Cross multiply
    133,097.64x = 183,630.64 × 87,798.12
  4. Step 4: Simplify right side
    133,097.64x = 16,122,424,966.40
  5. Step 5: Solve for x
    x = 16,122,424,966.40/133,097.64
  6. Step 6: Final answer
    x = 121,132.31

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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.