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Finding the Fourth Proportional to 102,667.60, 153,709.80 and 102,667.60

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Solution

The fourth proportional to 102,667.60, 153,709.80 and 102,667.60 is: 153,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,667.60 : 153,709.80 = 102,667.60 : x
  2. Step 2: Convert to fraction form
    102,667.60/153,709.80 = 102,667.60/x
  3. Step 3: Cross multiply
    102,667.60x = 153,709.80 × 102,667.60
  4. Step 4: Simplify right side
    102,667.60x = 15,781,016,262.48
  5. Step 5: Solve for x
    x = 15,781,016,262.48/102,667.60
  6. Step 6: Final answer
    x = 153,709.80

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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.